18457074 has 12 divisors (see below), whose sum is σ = 39990366. Its totient is φ = 6152352.

The previous prime is 18457073. The next prime is 18457097. The reversal of 18457074 is 47075481.

18457074 is a `hidden beast` number, since 1 + 84 + 570 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18429849 + 27225 = 4293^2 + 165^2 .

It is not an unprimeable number, because it can be changed into a prime (18457073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512679 + ... + 512714.

Almost surely, 2^18457074 is an apocalyptic number.

18457074 is an abundant number, since it is smaller than the sum of its proper divisors (21533292).

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

18457074 is a wasteful number, since it uses less digits than its factorization.

18457074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025401 (or 1025398 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 18457074 is about 4296.1696893861. The cubic root of 18457074 is about 264.2739064884.

The spelling of 18457074 in words is "eighteen million, four hundred fifty-seven thousand, seventy-four".