20925492 has 48 divisors (see below), whose sum is σ = 58232832. Its totient is φ = 5718240.

The previous prime is 20925467. The next prime is 20925533. The reversal of 20925492 is 29452902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3484 + ... + 7347.

It is an arithmetic number, because the mean of its divisors is an integer number (1213184).

Almost surely, 2^20925492 is an apocalyptic number.

It is an amenable number.

20925492 is an abundant number, since it is smaller than the sum of its proper divisors (37307340).

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

20925492 is a wasteful number, since it uses less digits than its factorization.

20925492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868 (or 10866 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20925492 is about 4574.4389819955. The cubic root of 20925492 is about 275.5657422189.

The spelling of 20925492 in words is "twenty million, nine hundred twenty-five thousand, four hundred ninety-two".