18872148 has 12 divisors (see below), whose sum is σ = 44035040. Its totient is φ = 6290712.

The previous prime is 18872143. The next prime is 18872173. The reversal of 18872148 is 84127881.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18872143) 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, 786328 + ... + 786351.

Almost surely, 2^18872148 is an apocalyptic number.

It is an amenable number.

18872148 is an abundant number, since it is smaller than the sum of its proper divisors (25162892).

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

18872148 is a wasteful number, since it uses less digits than its factorization.

18872148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572686 (or 1572684 counting only the distinct ones).

The product of its digits is 28672, while the sum is 39.

The square root of 18872148 is about 4344.2085585294. The cubic root of 18872148 is about 266.2402901526.

The spelling of 18872148 in words is "eighteen million, eight hundred seventy-two thousand, one hundred forty-eight".