15900416 has 72 divisors (see below), whose sum is σ = 38263680. Its totient is φ = 6441984.

The previous prime is 15900413. The next prime is 15900421. The reversal of 15900416 is 61400951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15900413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33815 + ... + 34281.

It is an arithmetic number, because the mean of its divisors is an integer number (531440).

Almost surely, 2^15900416 is an apocalyptic number.

15900416 is a gapful number since it is divisible by the number (16) 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 15900416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19131840).

15900416 is an abundant number, since it is smaller than the sum of its proper divisors (22363264).

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

15900416 is an equidigital number, since it uses as much as digits as its factorization.

15900416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 15900416 is about 3987.5325703999. The cubic root of 15900416 is about 251.4603383711.

The spelling of 15900416 in words is "fifteen million, nine hundred thousand, four hundred sixteen".