18466672 has 20 divisors (see below), whose sum is σ = 40890736. Its totient is φ = 7914240.

The previous prime is 18466667. The next prime is 18466673. The reversal of 18466672 is 27666481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18466673) 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, 82329 + ... + 82552.

Almost surely, 2^18466672 is an apocalyptic number.

It is an amenable number.

18466672 is an abundant number, since it is smaller than the sum of its proper divisors (22424064).

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

18466672 is a wasteful number, since it uses less digits than its factorization.

18466672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164896 (or 164890 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 18466672 is about 4297.2865857422. The cubic root of 18466672 is about 264.3197075618.

The spelling of 18466672 in words is "eighteen million, four hundred sixty-six thousand, six hundred seventy-two".