18123074 has 16 divisors (see below), whose sum is σ = 28982400. Its totient is φ = 8474544.

The previous prime is 18123073. The next prime is 18123097. The reversal of 18123074 is 47032181.

It is a super-2 number, since 2×18123074² = 656891622418952, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18123073) 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, 17 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (1811400).

Almost surely, 2^18123074 is an apocalyptic number.

18123074 is a deficient number, since it is larger than the sum of its proper divisors (10859326).

18123074 is a wasteful number, since it uses less digits than its factorization.

18123074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6137.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18123074 is about 4257.1203882437. The cubic root of 18123074 is about 262.6700890098.

The spelling of 18123074 in words is "eighteen million, one hundred twenty-three thousand, seventy-four".