18572560 has 40 divisors (see below), whose sum is σ = 44193600. Its totient is φ = 7254912.

The previous prime is 18572537. The next prime is 18572563. The reversal of 18572560 is 6527581.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (18572563) 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, 741 + ... + 6139.

It is an arithmetic number, because the mean of its divisors is an integer number (1104840).

Almost surely, 2^18572560 is an apocalyptic number.

18572560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18572560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22096800).

18572560 is an abundant number, since it is smaller than the sum of its proper divisors (25621040).

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

18572560 is a wasteful number, since it uses less digits than its factorization.

18572560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455 (or 5449 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 18572560 is about 4309.5893075791. The cubic root of 18572560 is about 264.8239485707.

The spelling of 18572560 in words is "eighteen million, five hundred seventy-two thousand, five hundred sixty".