20952764 has 24 divisors (see below), whose sum is σ = 42040320. Its totient is φ = 8950896.

The previous prime is 20952751. The next prime is 20952773. The reversal of 20952764 is 46725902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9257 + ... + 11295.

It is an arithmetic number, because the mean of its divisors is an integer number (1751680).

Almost surely, 2^20952764 is an apocalyptic number.

It is an amenable number.

20952764 is an abundant number, since it is smaller than the sum of its proper divisors (21087556).

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

20952764 is a wasteful number, since it uses less digits than its factorization.

20952764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 20952764 is about 4577.4189233672. The cubic root of 20952764 is about 275.6854043427.

The spelling of 20952764 in words is "twenty million, nine hundred fifty-two thousand, seven hundred sixty-four".