20632908 has 12 divisors (see below), whose sum is σ = 48143480. Its totient is φ = 6877632.

The previous prime is 20632889. The next prime is 20632919. The reversal of 20632908 is 80923602.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859693 + ... + 859716.

Almost surely, 2^20632908 is an apocalyptic number.

It is an amenable number.

20632908 is an abundant number, since it is smaller than the sum of its proper divisors (27510572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20632908 is a wasteful number, since it uses less digits than its factorization.

20632908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719416 (or 1719414 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20632908 is about 4542.3460898527. The cubic root of 20632908 is about 274.2753727190.

The spelling of 20632908 in words is "twenty million, six hundred thirty-two thousand, nine hundred eight".