18214074 has 12 divisors (see below), whose sum is σ = 39463866. Its totient is φ = 6071352.

The previous prime is 18214061. The next prime is 18214087. The reversal of 18214074 is 47041281.

It is an interprime number because it is at equal distance from previous prime (18214061) and next prime (18214087).

It can be written as a sum of positive squares in only one way, i.e., 14630625 + 3583449 = 3825^2 + 1893^2 .

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, 505929 + ... + 505964.

Almost surely, 2^18214074 is an apocalyptic number.

18214074 is an abundant number, since it is smaller than the sum of its proper divisors (21249792).

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

18214074 is a wasteful number, since it uses less digits than its factorization.

18214074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011901 (or 1011898 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 18214074 is about 4267.7949810177. The cubic root of 18214074 is about 263.1089969260.

The spelling of 18214074 in words is "eighteen million, two hundred fourteen thousand, seventy-four".