18572136 has 64 divisors (see below), whose sum is σ = 51217920. Its totient is φ = 5565120.

The previous prime is 18572111. The next prime is 18572153. The reversal of 18572136 is 63127581.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 18572097 and 18572106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26851 + ... + 27533.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 2^18572136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18572136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25608960).

18572136 is an abundant number, since it is smaller than the sum of its proper divisors (32645784).

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

18572136 is a wasteful number, since it uses less digits than its factorization.

18572136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 802 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 18572136 is about 4309.5401146758. The cubic root of 18572136 is about 264.8219333000.

It can be divided in two parts, 1857 and 2136, that added together give a palindrome (3993).

The spelling of 18572136 in words is "eighteen million, five hundred seventy-two thousand, one hundred thirty-six".