20983264 has 12 divisors (see below), whose sum is σ = 41310864. Its totient is φ = 10491616.

The previous prime is 20983247. The next prime is 20983271. The reversal of 20983264 is 46238902.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327832 + ... + 327895.

It is an arithmetic number, because the mean of its divisors is an integer number (3442572).

Almost surely, 2^20983264 is an apocalyptic number.

It is an amenable number.

20983264 is a deficient number, since it is larger than the sum of its proper divisors (20327600).

20983264 is an equidigital number, since it uses as much as digits as its factorization.

20983264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655737 (or 655729 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 20983264 is about 4580.7492836871. The cubic root of 20983264 is about 275.8191071200.

The spelling of 20983264 in words is "twenty million, nine hundred eighty-three thousand, two hundred sixty-four".