15320916 has 72 divisors (see below), whose sum is σ = 43927520. Its totient is φ = 4463424.

The previous prime is 15320909. The next prime is 15320917. The reversal of 15320916 is 61902351.

It is a self number, because there is not a number n which added to its sum of digits gives 15320916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15320917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8031 + ... + 9753.

Almost surely, 2^15320916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15320916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21963760).

15320916 is an abundant number, since it is smaller than the sum of its proper divisors (28606604).

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

15320916 is a wasteful number, since it uses less digits than its factorization.

15320916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 15320916 is about 3914.1941699410. The cubic root of 15320916 is about 248.3675827222.

The spelling of 15320916 in words is "fifteen million, three hundred twenty thousand, nine hundred sixteen".