1373885280 has 192 divisors, whose sum is σ = 4964198400. Its totient is φ = 354516480.

The previous prime is 1373885251. The next prime is 1373885281. The reversal of 1373885280 is 825883731.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373885281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128791 + ... + 139049.

It is an arithmetic number, because the mean of its divisors is an integer number (25855200).

Almost surely, 2^1373885280 is an apocalyptic number.

1373885280 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 1373885280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2482099200).

1373885280 is an abundant number, since it is smaller than the sum of its proper divisors (3590313120).

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

1373885280 is a wasteful number, since it uses less digits than its factorization.

1373885280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10314 (or 10300 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 1373885280 is about 37065.9585064247. The cubic root of 1373885280 is about 1111.6894652444.

The spelling of 1373885280 in words is "one billion, three hundred seventy-three million, eight hundred eighty-five thousand, two hundred eighty".