20585924 has 6 divisors (see below), whose sum is σ = 36025374. Its totient is φ = 10292960.

The previous prime is 20585893. The next prime is 20585941. The reversal of 20585924 is 42958502.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 515524 = 4480^2 + 718^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2573237 + ... + 2573244.

It is an arithmetic number, because the mean of its divisors is an integer number (6004229).

Almost surely, 2^20585924 is an apocalyptic number.

It is an amenable number.

20585924 is a deficient number, since it is larger than the sum of its proper divisors (15439450).

20585924 is a wasteful number, since it uses less digits than its factorization.

20585924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146485 (or 5146483 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 20585924 is about 4537.1713655096. The cubic root of 20585924 is about 274.0670267764.

The spelling of 20585924 in words is "twenty million, five hundred eighty-five thousand, nine hundred twenty-four".