20965692 has 48 divisors (see below), whose sum is σ = 56512512. Its totient is φ = 5978880.

The previous prime is 20965669. The next prime is 20965723. The reversal of 20965692 is 29656902.

It is a self number, because there is not a number n which added to its sum of digits gives 20965692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2428 + ... + 6915.

It is an arithmetic number, because the mean of its divisors is an integer number (1177344).

Almost surely, 2^20965692 is an apocalyptic number.

20965692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20965692 is an abundant number, since it is smaller than the sum of its proper divisors (35546820).

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

20965692 is a wasteful number, since it uses less digits than its factorization.

20965692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9378 (or 9376 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 20965692 is about 4578.8308551420. The cubic root of 20965692 is about 275.7420926177.

The spelling of 20965692 in words is "twenty million, nine hundred sixty-five thousand, six hundred ninety-two".