18130774 has 16 divisors (see below), whose sum is σ = 28094976. Its totient is φ = 8769600.

The previous prime is 18130757. The next prime is 18130787. The reversal of 18130774 is 47703181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9544 + ... + 11284.

It is an arithmetic number, because the mean of its divisors is an integer number (1755936).

Almost surely, 2^18130774 is an apocalyptic number.

18130774 is a deficient number, since it is larger than the sum of its proper divisors (9964202).

18130774 is a wasteful number, since it uses less digits than its factorization.

18130774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 18130774 is about 4258.0246593931. The cubic root of 18130774 is about 262.7072841955.

The spelling of 18130774 in words is "eighteen million, one hundred thirty thousand, seven hundred seventy-four".