1373603328 has 240 divisors, whose sum is σ = 4324834800. Its totient is φ = 418037760.

The previous prime is 1373603327. The next prime is 1373603339. The reversal of 1373603328 is 8233063731.

It is a happy number.

1373603328 is a `hidden beast` number, since 13 + 7 + 3 + 603 + 32 + 8 = 666.

It is a super-2 number, since 2×1373603328² = 3773572205385351168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1373603292 and 1373603301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373603321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2538738 + ... + 2539278.

It is an arithmetic number, because the mean of its divisors is an integer number (18020145).

Almost surely, 2^1373603328 is an apocalyptic number.

1373603328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1373603328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2162417400).

1373603328 is an abundant number, since it is smaller than the sum of its proper divisors (2951231472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1373603328 is a wasteful number, since it uses less digits than its factorization.

1373603328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 1373603328 is about 37062.1549292536. The cubic root of 1373603328 is about 1111.6134121908.

The spelling of 1373603328 in words is "one billion, three hundred seventy-three million, six hundred three thousand, three hundred twenty-eight".