20534924 has 12 divisors (see below), whose sum is σ = 36016344. Its totient is φ = 10244544.

The previous prime is 20534893. The next prime is 20534933. The reversal of 20534924 is 42943502.

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, 3629 + ... + 7364.

It is an arithmetic number, because the mean of its divisors is an integer number (3001362).

Almost surely, 2^20534924 is an apocalyptic number.

It is an amenable number.

20534924 is a deficient number, since it is larger than the sum of its proper divisors (15481420).

20534924 is a wasteful number, since it uses less digits than its factorization.

20534924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11464 (or 11462 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20534924 is about 4531.5476385006. The cubic root of 20534924 is about 273.8405131494.

The spelling of 20534924 in words is "twenty million, five hundred thirty-four thousand, nine hundred twenty-four".