20185372 has 24 divisors (see below), whose sum is σ = 37981440. Its totient is φ = 9356400.

The previous prime is 20185357. The next prime is 20185379. The reversal of 20185372 is 27358102.

It is a self number, because there is not a number n which added to its sum of digits gives 20185372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20185379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747 + ... + 6397.

It is an arithmetic number, because the mean of its divisors is an integer number (1582560).

Almost surely, 2^20185372 is an apocalyptic number.

It is an amenable number.

20185372 is a deficient number, since it is larger than the sum of its proper divisors (17796068).

20185372 is a wasteful number, since it uses less digits than its factorization.

20185372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721 (or 5719 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20185372 is about 4492.8133724872. The cubic root of 20185372 is about 272.2778123195.

The spelling of 20185372 in words is "twenty million, one hundred eighty-five thousand, three hundred seventy-two".