15996290 has 16 divisors (see below), whose sum is σ = 30309120. Its totient is φ = 6061680.

The previous prime is 15996251. The next prime is 15996307. The reversal of 15996290 is 9269951.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41906 + ... + 42285.

It is an arithmetic number, because the mean of its divisors is an integer number (1894320).

Almost surely, 2^15996290 is an apocalyptic number.

15996290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15996290 is a deficient number, since it is larger than the sum of its proper divisors (14312830).

15996290 is a wasteful number, since it uses less digits than its factorization.

15996290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84217.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 15996290 is about 3999.5362231139. The cubic root of 15996290 is about 251.9647321939.

The spelling of 15996290 in words is "fifteen million, nine hundred ninety-six thousand, two hundred ninety".