21932632 has 8 divisors (see below), whose sum is σ = 41123700. Its totient is φ = 10966312.

The previous prime is 21932629. The next prime is 21932657. The reversal of 21932632 is 23623912.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 21932632.

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, 1370782 + ... + 1370797.

Almost surely, 2^21932632 is an apocalyptic number.

It is an amenable number.

21932632 is a deficient number, since it is larger than the sum of its proper divisors (19191068).

21932632 is a wasteful number, since it uses less digits than its factorization.

21932632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741585 (or 2741581 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 21932632 is about 4683.2288007314. The cubic root of 21932632 is about 279.9176288314.

The spelling of 21932632 in words is "twenty-one million, nine hundred thirty-two thousand, six hundred thirty-two".