15290864 has 20 divisors (see below), whose sum is σ = 29826960. Its totient is φ = 7593600.

The previous prime is 15290861. The next prime is 15290881. The reversal of 15290864 is 46809251.

15290864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15290861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749 + ... + 5580.

It is an arithmetic number, because the mean of its divisors is an integer number (1491348).

Almost surely, 2^15290864 is an apocalyptic number.

It is an amenable number.

15290864 is a deficient number, since it is larger than the sum of its proper divisors (14536096).

15290864 is a wasteful number, since it uses less digits than its factorization.

15290864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488 (or 6482 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 15290864 is about 3910.3534367113. The cubic root of 15290864 is about 248.2050852993.

The spelling of 15290864 in words is "fifteen million, two hundred ninety thousand, eight hundred sixty-four".