21096932 has 18 divisors (see below), whose sum is σ = 39161682. Its totient is φ = 9910144.

The previous prime is 21096931. The next prime is 21096941. The reversal of 21096932 is 23969012.

It can be written as a sum of positive squares in 3 ways, for example, as 65536 + 21031396 = 256^2 + 4586^2 .

It is not an unprimeable number, because it can be changed into a prime (21096931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37598 + ... + 38154.

It is an arithmetic number, because the mean of its divisors is an integer number (2175649).

Almost surely, 2^21096932 is an apocalyptic number.

It is an amenable number.

21096932 is a deficient number, since it is larger than the sum of its proper divisors (18064750).

21096932 is an equidigital number, since it uses as much as digits as its factorization.

21096932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 21096932 is about 4593.1396669381. The cubic root of 21096932 is about 276.3162551374.

The spelling of 21096932 in words is "twenty-one million, ninety-six thousand, nine hundred thirty-two".