20492924 has 6 divisors (see below), whose sum is σ = 35862624. Its totient is φ = 10246460.

The previous prime is 20492921. The next prime is 20492929. The reversal of 20492924 is 42929402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492921) by changing a digit.

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 as a sum of consecutive naturals, namely, 2561612 + ... + 2561619.

It is an arithmetic number, because the mean of its divisors is an integer number (5977104).

Almost surely, 2^20492924 is an apocalyptic number.

It is an amenable number.

20492924 is a deficient number, since it is larger than the sum of its proper divisors (15369700).

20492924 is a wasteful number, since it uses less digits than its factorization.

20492924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123235 (or 5123233 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 20492924 is about 4526.9110881483. The cubic root of 20492924 is about 273.6536907444.

The spelling of 20492924 in words is "twenty million, four hundred ninety-two thousand, nine hundred twenty-four".