21332038 has 16 divisors (see below), whose sum is σ = 39382560. Its totient is φ = 8438976.

The previous prime is 21332029. The next prime is 21332053. The reversal of 21332038 is 83023312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58423 + ... + 58786.

It is an arithmetic number, because the mean of its divisors is an integer number (2461410).

Almost surely, 2^21332038 is an apocalyptic number.

21332038 is a deficient number, since it is larger than the sum of its proper divisors (18050522).

21332038 is a wasteful number, since it uses less digits than its factorization.

21332038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117231.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 21332038 is about 4618.6619274418. The cubic root of 21332038 is about 277.3388962893.

The spelling of 21332038 in words is "twenty-one million, three hundred thirty-two thousand, thirty-eight".