28230924 has 12 divisors (see below), whose sum is σ = 65872184. Its totient is φ = 9410304.

The previous prime is 28230877. The next prime is 28230947. The reversal of 28230924 is 42903282.

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

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 28230891 and 28230900.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176277 + ... + 1176300.

Almost surely, 2^28230924 is an apocalyptic number.

It is an amenable number.

28230924 is an abundant number, since it is smaller than the sum of its proper divisors (37641260).

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

28230924 is a wasteful number, since it uses less digits than its factorization.

28230924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352584 (or 2352582 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28230924 is about 5313.2780841962. The cubic root of 28230924 is about 304.4913999636.

The spelling of 28230924 in words is "twenty-eight million, two hundred thirty thousand, nine hundred twenty-four".