20951792 has 20 divisors (see below), whose sum is σ = 41261496. Its totient is φ = 10303680.

The previous prime is 20951767. The next prime is 20951797. The reversal of 20951792 is 29715902.

It is a super-2 number, since 2×20951792² = 877955176022528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20951797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9758 + ... + 11709.

Almost surely, 2^20951792 is an apocalyptic number.

It is an amenable number.

20951792 is a deficient number, since it is larger than the sum of its proper divisors (20309704).

20951792 is a wasteful number, since it uses less digits than its factorization.

20951792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21536 (or 21530 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 20951792 is about 4577.3127487643. The cubic root of 20951792 is about 275.6811412558.

The spelling of 20951792 in words is "twenty million, nine hundred fifty-one thousand, seven hundred ninety-two".