18468572 has 6 divisors (see below), whose sum is σ = 32320008. Its totient is φ = 9234284.

The previous prime is 18468547. The next prime is 18468577. The reversal of 18468572 is 27586481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18468577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2308568 + ... + 2308575.

It is an arithmetic number, because the mean of its divisors is an integer number (5386668).

Almost surely, 2^18468572 is an apocalyptic number.

It is an amenable number.

18468572 is a deficient number, since it is larger than the sum of its proper divisors (13851436).

18468572 is a wasteful number, since it uses less digits than its factorization.

18468572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617147 (or 4617145 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 18468572 is about 4297.5076497896. The cubic root of 18468572 is about 264.3287723646.

The spelling of 18468572 in words is "eighteen million, four hundred sixty-eight thousand, five hundred seventy-two".