18466956 has 36 divisors (see below), whose sum is σ = 47326552. Its totient is φ = 6070464.

The previous prime is 18466951. The next prime is 18466969. The reversal of 18466956 is 65966481.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (18466951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 886 + ... + 6141.

Almost surely, 2^18466956 is an apocalyptic number.

It is an amenable number.

18466956 is an abundant number, since it is smaller than the sum of its proper divisors (28859596).

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

18466956 is a wasteful number, since it uses less digits than its factorization.

18466956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7110 (or 7105 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 18466956 is about 4297.3196297227. The cubic root of 18466956 is about 264.3210625508.

The spelling of 18466956 in words is "eighteen million, four hundred sixty-six thousand, nine hundred fifty-six".