18880548 has 12 divisors (see below), whose sum is σ = 44054640. Its totient is φ = 6293512.

The previous prime is 18880529. The next prime is 18880553. The reversal of 18880548 is 84508881.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786678 + ... + 786701.

It is an arithmetic number, because the mean of its divisors is an integer number (3671220).

Almost surely, 2^18880548 is an apocalyptic number.

It is an amenable number.

18880548 is an abundant number, since it is smaller than the sum of its proper divisors (25174092).

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

18880548 is a wasteful number, since it uses less digits than its factorization.

18880548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573386 (or 1573384 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 42.

The square root of 18880548 is about 4345.1752553838. The cubic root of 18880548 is about 266.2797855104.

The spelling of 18880548 in words is "eighteen million, eight hundred eighty thousand, five hundred forty-eight".