20960964 has 24 divisors (see below), whose sum is σ = 54343520. Its totient is φ = 6986952.

The previous prime is 20960959. The next prime is 20960999. The reversal of 20960964 is 46906902.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96934 + ... + 97149.

Almost surely, 2^20960964 is an apocalyptic number.

It is an amenable number.

20960964 is an abundant number, since it is smaller than the sum of its proper divisors (33382556).

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

20960964 is a wasteful number, since it uses less digits than its factorization.

20960964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194096 (or 194088 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 20960964 is about 4578.3145370322. The cubic root of 20960964 is about 275.7213634088.

The spelling of 20960964 in words is "twenty million, nine hundred sixty thousand, nine hundred sixty-four".