21368162 has 16 divisors (see below), whose sum is σ = 32931360. Its totient is φ = 10393152.

The previous prime is 21368153. The next prime is 21368177. The reversal of 21368162 is 26186312.

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, 35738 + ... + 36330.

It is an arithmetic number, because the mean of its divisors is an integer number (2058210).

Almost surely, 2^21368162 is an apocalyptic number.

21368162 is a deficient number, since it is larger than the sum of its proper divisors (11563198).

21368162 is a wasteful number, since it uses less digits than its factorization.

21368162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its digits is 3456, while the sum is 29.

The square root of 21368162 is about 4622.5709296884. The cubic root of 21368162 is about 277.4953579831.

The spelling of 21368162 in words is "twenty-one million, three hundred sixty-eight thousand, one hundred sixty-two".