18180674 has 8 divisors (see below), whose sum is σ = 27289548. Its totient is φ = 9084160.

The previous prime is 18180661. The next prime is 18180677. The reversal of 18180674 is 47608181.

It can be written as a sum of positive squares in 2 ways, for example, as 16752649 + 1428025 = 4093^2 + 1195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18180677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954 + ... + 6714.

Almost surely, 2^18180674 is an apocalyptic number.

18180674 is a deficient number, since it is larger than the sum of its proper divisors (9108874).

18180674 is a wasteful number, since it uses less digits than its factorization.

18180674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 18180674 is about 4263.8801577906. The cubic root of 18180674 is about 262.9480734274.

The spelling of 18180674 in words is "eighteen million, one hundred eighty thousand, six hundred seventy-four".