21295372 has 12 divisors (see below), whose sum is σ = 42590800. Its totient is φ = 9126576.

The previous prime is 21295369. The next prime is 21295399. The reversal of 21295372 is 27359212.

21295372 is an admirable number.

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, 380247 + ... + 380302.

Almost surely, 2^21295372 is an apocalyptic number.

It is an amenable number.

21295372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21295372 is a wasteful number, since it uses less digits than its factorization.

21295372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760560 (or 760558 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 21295372 is about 4614.6908888895. The cubic root of 21295372 is about 277.1799063274.

The spelling of 21295372 in words is "twenty-one million, two hundred ninety-five thousand, three hundred seventy-two".