18234988 has 12 divisors (see below), whose sum is σ = 32387992. Its totient is φ = 8981280.

The previous prime is 18234977. The next prime is 18235027. The reversal of 18234988 is 88943281.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33753 + ... + 34288.

Almost surely, 2^18234988 is an apocalyptic number.

It is an amenable number.

18234988 is a deficient number, since it is larger than the sum of its proper divisors (14153004).

18234988 is a wasteful number, since it uses less digits than its factorization.

18234988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68112 (or 68110 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 18234988 is about 4270.2444894877. The cubic root of 18234988 is about 263.2096618805.

The spelling of 18234988 in words is "eighteen million, two hundred thirty-four thousand, nine hundred eighty-eight".