20969292 has 12 divisors (see below), whose sum is σ = 48928376. Its totient is φ = 6989760.

The previous prime is 20969281. The next prime is 20969303. The reversal of 20969292 is 29296902.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20969281) and next prime (20969303).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20969292² = 879422413962528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20969292.

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 3 ways as a sum of consecutive naturals, for example, 873709 + ... + 873732.

Almost surely, 2^20969292 is an apocalyptic number.

It is an amenable number.

20969292 is an abundant number, since it is smaller than the sum of its proper divisors (27959084).

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

20969292 is a wasteful number, since it uses less digits than its factorization.

20969292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747448 (or 1747446 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 20969292 is about 4579.2239517193. The cubic root of 20969292 is about 275.7578741895.

The spelling of 20969292 in words is "twenty million, nine hundred sixty-nine thousand, two hundred ninety-two".