18616948 has 12 divisors (see below), whose sum is σ = 37233952. Its totient is φ = 7978680.

The previous prime is 18616943. The next prime is 18616987. The reversal of 18616948 is 84961681.

18616948 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18616943) 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, 332418 + ... + 332473.

Almost surely, 2^18616948 is an apocalyptic number.

It is an amenable number.

18616948 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18616948 is a wasteful number, since it uses less digits than its factorization.

18616948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664902 (or 664900 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 18616948 is about 4314.7361448877. The cubic root of 18616948 is about 265.0347551426.

The spelling of 18616948 in words is "eighteen million, six hundred sixteen thousand, nine hundred forty-eight".