28342912 has 32 divisors (see below), whose sum is σ = 60811380. Its totient is φ = 13080576.

The previous prime is 28342903. The next prime is 28342933. The reversal of 28342912 is 21924382.

It can be written as a sum of positive squares in 2 ways, for example, as 25160256 + 3182656 = 5016^2 + 1784^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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, 6853 + ... + 10180.

Almost surely, 2^28342912 is an apocalyptic number.

It is an amenable number.

28342912 is an abundant number, since it is smaller than the sum of its proper divisors (32468468).

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

28342912 is a wasteful number, since it uses less digits than its factorization.

28342912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17060 (or 17048 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 28342912 is about 5323.8061572525. The cubic root of 28342912 is about 304.8934932249.

The spelling of 28342912 in words is "twenty-eight million, three hundred forty-two thousand, nine hundred twelve".