21038596 has 12 divisors (see below), whose sum is σ = 36851920. Its totient is φ = 10509480.

The previous prime is 21038593. The next prime is 21038597. The reversal of 21038596 is 69583012.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (21038593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4651 + ... + 7981.

Almost surely, 2^21038596 is an apocalyptic number.

It is an amenable number.

21038596 is a deficient number, since it is larger than the sum of its proper divisors (15813324).

21038596 is a wasteful number, since it uses less digits than its factorization.

21038596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914 (or 4912 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 21038596 is about 4586.7849306459. The cubic root of 21038596 is about 276.0613355247.

The spelling of 21038596 in words is "twenty-one million, thirty-eight thousand, five hundred ninety-six".