18572364 has 36 divisors (see below), whose sum is σ = 49710024. Its totient is φ = 5826432.

The previous prime is 18572363. The next prime is 18572371. The reversal of 18572364 is 46327581.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18572363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14562 + ... + 15785.

It is an arithmetic number, because the mean of its divisors is an integer number (1380834).

Almost surely, 2^18572364 is an apocalyptic number.

It is an amenable number.

18572364 is an abundant number, since it is smaller than the sum of its proper divisors (31137660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18572364 is a wasteful number, since it uses less digits than its factorization.

18572364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30374 (or 30369 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 18572364 is about 4309.5665675332. The cubic root of 18572364 is about 264.8230169872.

The spelling of 18572364 in words is "eighteen million, five hundred seventy-two thousand, three hundred sixty-four".