20970632 has 16 divisors (see below), whose sum is σ = 40588800. Its totient is φ = 10146960.

The previous prime is 20970617. The next prime is 20970643. The reversal of 20970632 is 23607902.

It is a junction number, because it is equal to n+sod(n) for n = 20970595 and 20970604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42032 + ... + 42527.

It is an arithmetic number, because the mean of its divisors is an integer number (2536800).

Almost surely, 2^20970632 is an apocalyptic number.

It is an amenable number.

20970632 is a deficient number, since it is larger than the sum of its proper divisors (19618168).

20970632 is a wasteful number, since it uses less digits than its factorization.

20970632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84596 (or 84592 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20970632 is about 4579.3702623832. The cubic root of 20970632 is about 275.7637479799.

The spelling of 20970632 in words is "twenty million, nine hundred seventy thousand, six hundred thirty-two".