18423148 has 6 divisors (see below), whose sum is σ = 32240516. Its totient is φ = 9211572.

The previous prime is 18423137. The next prime is 18423157. The reversal of 18423148 is 84132481.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2302890 + ... + 2302897.

Almost surely, 2^18423148 is an apocalyptic number.

It is an amenable number.

18423148 is a deficient number, since it is larger than the sum of its proper divisors (13817368).

18423148 is a wasteful number, since it uses less digits than its factorization.

18423148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605791 (or 4605789 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 18423148 is about 4292.2194724874. The cubic root of 18423148 is about 264.1118863058. Note that the first 3 decimals are identical.

It can be divided in two parts, 184 and 23148, that added together give a palindrome (23332).

The spelling of 18423148 in words is "eighteen million, four hundred twenty-three thousand, one hundred forty-eight".