22506632 has 8 divisors (see below), whose sum is σ = 42199950. Its totient is φ = 11253312.

The previous prime is 22506629. The next prime is 22506637. The reversal of 22506632 is 23660522.

It can be written as a sum of positive squares in only one way, i.e., 12859396 + 9647236 = 3586^2 + 3106^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22506637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406657 + ... + 1406672.

Almost surely, 2^22506632 is an apocalyptic number.

It is an amenable number.

22506632 is a deficient number, since it is larger than the sum of its proper divisors (19693318).

22506632 is a wasteful number, since it uses less digits than its factorization.

22506632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813335 (or 2813331 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 22506632 is about 4744.1155129276. The cubic root of 22506632 is about 282.3385434992.

The spelling of 22506632 in words is "twenty-two million, five hundred six thousand, six hundred thirty-two".