21295936 has 14 divisors (see below), whose sum is σ = 42259250. Its totient is φ = 10647936.

The previous prime is 21295913. The next prime is 21295961. The reversal of 21295936 is 63959212.

It can be written as a sum of positive squares in only one way, i.e., 19855936 + 1440000 = 4456^2 + 1200^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21295895 and 21295904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166311 + ... + 166438.

Almost surely, 2^21295936 is an apocalyptic number.

It is an amenable number.

21295936 is a deficient number, since it is larger than the sum of its proper divisors (20963314).

21295936 is an equidigital number, since it uses as much as digits as its factorization.

21295936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332761 (or 332751 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 21295936 is about 4614.7519976701. The cubic root of 21295936 is about 277.1823533080.

The spelling of 21295936 in words is "twenty-one million, two hundred ninety-five thousand, nine hundred thirty-six".