18536674 has 16 divisors (see below), whose sum is σ = 30675960. Its totient is φ = 8346240.

The previous prime is 18536669. The next prime is 18536677. The reversal of 18536674 is 47663581.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8970025 + 9566649 = 2995^2 + 3093^2 .

It is not an unprimeable number, because it can be changed into a prime (18536677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7629 + ... + 9760.

Almost surely, 2^18536674 is an apocalyptic number.

18536674 is a deficient number, since it is larger than the sum of its proper divisors (12139286).

18536674 is a wasteful number, since it uses less digits than its factorization.

18536674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17445.

The product of its digits is 120960, while the sum is 40.

The square root of 18536674 is about 4305.4237886647. The cubic root of 18536674 is about 264.6532738462.

The spelling of 18536674 in words is "eighteen million, five hundred thirty-six thousand, six hundred seventy-four".