18580234 has 8 divisors (see below), whose sum is σ = 28327428. Its totient is φ = 9137760.

The previous prime is 18580223. The next prime is 18580267. The reversal of 18580234 is 43208581.

It can be written as a sum of positive squares in 2 ways, for example, as 13727025 + 4853209 = 3705^2 + 2203^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 18580196 and 18580205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76027 + ... + 76270.

Almost surely, 2^18580234 is an apocalyptic number.

18580234 is a deficient number, since it is larger than the sum of its proper divisors (9747194).

18580234 is a wasteful number, since it uses less digits than its factorization.

18580234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152360.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 18580234 is about 4310.4795556875. The cubic root of 18580234 is about 264.8604177694.

The spelling of 18580234 in words is "eighteen million, five hundred eighty thousand, two hundred thirty-four".