20604632 has 16 divisors (see below), whose sum is σ = 39576600. Its totient is φ = 10050880.

The previous prime is 20604613. The next prime is 20604679. The reversal of 20604632 is 23640602.

It is a junction number, because it is equal to n+sod(n) for n = 20604598 and 20604607.

It is a congruent number.

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, 31082 + ... + 31737.

Almost surely, 2^20604632 is an apocalyptic number.

It is an amenable number.

20604632 is a deficient number, since it is larger than the sum of its proper divisors (18971968).

20604632 is a wasteful number, since it uses less digits than its factorization.

20604632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62866 (or 62862 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20604632 is about 4539.2325342507. The cubic root of 20604632 is about 274.1500235132.

The spelling of 20604632 in words is "twenty million, six hundred four thousand, six hundred thirty-two".