18230774 has 8 divisors (see below), whose sum is σ = 27485568. Its totient is φ = 9068920.

The previous prime is 18230761. The next prime is 18230777. The reversal of 18230774 is 47703281.

It is a happy number.

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

It is a super-2 number, since 2×18230774² = 664722241278152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18230774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18230777) 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, 22742 + ... + 23529.

It is an arithmetic number, because the mean of its divisors is an integer number (3435696).

Almost surely, 2^18230774 is an apocalyptic number.

18230774 is a deficient number, since it is larger than the sum of its proper divisors (9254794).

18230774 is a wasteful number, since it uses less digits than its factorization.

18230774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46470.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 18230774 is about 4269.7510466068. The cubic root of 18230774 is about 263.1893849095.

The spelling of 18230774 in words is "eighteen million, two hundred thirty thousand, seven hundred seventy-four".