15872990 has 32 divisors (see below), whose sum is σ = 34076160. Its totient is φ = 5205024.

The previous prime is 15872971. The next prime is 15873001. The reversal of 15872990 is 9927851.

It is a congruent number.

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, 3320 + ... + 6539.

It is an arithmetic number, because the mean of its divisors is an integer number (1064880).

Almost surely, 2^15872990 is an apocalyptic number.

15872990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15872990 is an abundant number, since it is smaller than the sum of its proper divisors (18203170).

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

15872990 is a wasteful number, since it uses less digits than its factorization.

15872990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9896.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 15872990 is about 3984.0921174089. The cubic root of 15872990 is about 251.3156771614.

The spelling of 15872990 in words is "fifteen million, eight hundred seventy-two thousand, nine hundred ninety".