20941892 has 12 divisors (see below), whose sum is σ = 38804220. Its totient is φ = 9854976.

The previous prime is 20941871. The next prime is 20941913. The reversal of 20941892 is 29814902.

It is an interprime number because it is at equal distance from previous prime (20941871) and next prime (20941913).

It can be written as a sum of positive squares in 2 ways, for example, as 16128256 + 4813636 = 4016^2 + 2194^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153917 + ... + 154052.

It is an arithmetic number, because the mean of its divisors is an integer number (3233685).

Almost surely, 2^20941892 is an apocalyptic number.

It is an amenable number.

20941892 is a deficient number, since it is larger than the sum of its proper divisors (17862328).

20941892 is a wasteful number, since it uses less digits than its factorization.

20941892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307990 (or 307988 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 20941892 is about 4576.2312004531. The cubic root of 20941892 is about 275.6377134148.

The spelling of 20941892 in words is "twenty million, nine hundred forty-one thousand, eight hundred ninety-two".