15796880 has 80 divisors (see below), whose sum is σ = 41515200. Its totient is φ = 5537280.

The previous prime is 15796811. The next prime is 15796903. The reversal of 15796880 is 8869751.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25211 + ... + 25829.

It is an arithmetic number, because the mean of its divisors is an integer number (518940).

Almost surely, 2^15796880 is an apocalyptic number.

15796880 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 15796880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20757600).

15796880 is an abundant number, since it is smaller than the sum of its proper divisors (25718320).

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

15796880 is a wasteful number, since it uses less digits than its factorization.

15796880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 15796880 is about 3974.5289029016. The cubic root of 15796880 is about 250.9133524191.

The spelling of 15796880 in words is "fifteen million, seven hundred ninety-six thousand, eight hundred eighty".