20585372 has 6 divisors (see below), whose sum is σ = 36024408. Its totient is φ = 10292684.

The previous prime is 20585329. The next prime is 20585381. The reversal of 20585372 is 27358502.

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 as a sum of consecutive naturals, namely, 2573168 + ... + 2573175.

It is an arithmetic number, because the mean of its divisors is an integer number (6004068).

Almost surely, 2^20585372 is an apocalyptic number.

It is an amenable number.

20585372 is a deficient number, since it is larger than the sum of its proper divisors (15439036).

20585372 is a wasteful number, since it uses less digits than its factorization.

20585372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146347 (or 5146345 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 20585372 is about 4537.1105342497. The cubic root of 20585372 is about 274.0645771033.

The spelling of 20585372 in words is "twenty million, five hundred eighty-five thousand, three hundred seventy-two".