18574872 has 16 divisors (see below), whose sum is σ = 46437240. Its totient is φ = 6191616.

The previous prime is 18574867. The next prime is 18574873. The reversal of 18574872 is 27847581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18574873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386953 + ... + 387000.

Almost surely, 2^18574872 is an apocalyptic number.

18574872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18574872 is an abundant number, since it is smaller than the sum of its proper divisors (27862368).

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

18574872 is a wasteful number, since it uses less digits than its factorization.

18574872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773962 (or 773958 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 18574872 is about 4309.8575382488. The cubic root of 18574872 is about 264.8349369602.

It can be divided in two parts, 185 and 74872, that added together give a palindrome (75057).

The spelling of 18574872 in words is "eighteen million, five hundred seventy-four thousand, eight hundred seventy-two".