18374814 has 12 divisors (see below), whose sum is σ = 39812136. Its totient is φ = 6124932.

The previous prime is 18374771. The next prime is 18374821. The reversal of 18374814 is 41847381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510394 + ... + 510429.

It is an arithmetic number, because the mean of its divisors is an integer number (3317678).

Almost surely, 2^18374814 is an apocalyptic number.

18374814 is an abundant number, since it is smaller than the sum of its proper divisors (21437322).

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

18374814 is a wasteful number, since it uses less digits than its factorization.

18374814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020831 (or 1020828 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 18374814 is about 4286.5853543351. The cubic root of 18374814 is about 263.8807140162.

The spelling of 18374814 in words is "eighteen million, three hundred seventy-four thousand, eight hundred fourteen".