28164924 has 36 divisors (see below), whose sum is σ = 72263464. Its totient is φ = 9247392.

The previous prime is 28164883. The next prime is 28164953. The reversal of 28164924 is 42946182.

28164924 is a `hidden beast` number, since 2 + 8 + 1 + 649 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3427 + ... + 8250.

Almost surely, 2^28164924 is an apocalyptic number.

It is an amenable number.

28164924 is an abundant number, since it is smaller than the sum of its proper divisors (44098540).

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

28164924 is a wasteful number, since it uses less digits than its factorization.

28164924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11754 (or 11749 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 28164924 is about 5307.0635948705. The cubic root of 28164924 is about 304.2539285338.

It can be divided in two parts, 281649 and 24, that multiplied together give a palindrome (6759576).

The spelling of 28164924 in words is "twenty-eight million, one hundred sixty-four thousand, nine hundred twenty-four".