1373364720 has 800 divisors, whose sum is σ = 6261349248. Its totient is φ = 270729216.

The previous prime is 1373364709. The next prime is 1373364721. The reversal of 1373364720 is 274633731.

1373364720 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 3 + 647 + 2 + 0 = 666.

It is a super-2 number, since 2×1373364720² = 3772261308281356800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373364721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10024492 + ... + 10024628.

Almost surely, 2^1373364720 is an apocalyptic number.

1373364720 is a gapful number since it is divisible by the number (10) 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 1373364720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3130674624).

1373364720 is an abundant number, since it is smaller than the sum of its proper divisors (4887984528).

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

1373364720 is a wasteful number, since it uses less digits than its factorization.

1373364720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 1373364720 is about 37058.9357645359. The cubic root of 1373364720 is about 1111.5490425125.

The spelling of 1373364720 in words is "one billion, three hundred seventy-three million, three hundred sixty-four thousand, seven hundred twenty".