15913968 has 40 divisors (see below), whose sum is σ = 46985088. Its totient is φ = 4546752.

The previous prime is 15913967. The next prime is 15913969. The reversal of 15913968 is 86931951.

It is an interprime number because it is at equal distance from previous prime (15913967) and next prime (15913969).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15913967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23346 + ... + 24017.

Almost surely, 2^15913968 is an apocalyptic number.

It is an amenable number.

15913968 is an abundant number, since it is smaller than the sum of its proper divisors (31071120).

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

15913968 is a wasteful number, since it uses less digits than its factorization.

15913968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47381 (or 47375 counting only the distinct ones).

The product of its digits is 58320, while the sum is 42.

The square root of 15913968 is about 3989.2315049393. The cubic root of 15913968 is about 251.5317583642.

The spelling of 15913968 in words is "fifteen million, nine hundred thirteen thousand, nine hundred sixty-eight".