15085428 has 12 divisors (see below), whose sum is σ = 35199360. Its totient is φ = 5028472.

The previous prime is 15085397. The next prime is 15085429. The reversal of 15085428 is 82458051.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) 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 (15085429) 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, 628548 + ... + 628571.

It is an arithmetic number, because the mean of its divisors is an integer number (2933280).

Almost surely, 2^15085428 is an apocalyptic number.

It is an amenable number.

15085428 is an abundant number, since it is smaller than the sum of its proper divisors (20113932).

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

15085428 is a wasteful number, since it uses less digits than its factorization.

15085428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257126 (or 1257124 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 15085428 is about 3883.9963954669. The cubic root of 15085428 is about 247.0885071310.

The spelling of 15085428 in words is "fifteen million, eighty-five thousand, four hundred twenty-eight".