18011274 has 8 divisors (see below), whose sum is σ = 36022560. Its totient is φ = 6003756.

The previous prime is 18011261. The next prime is 18011299. The reversal of 18011274 is 47211081.

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

18011274 is an admirable number.

It is a super-2 number, since 2×18011274² = 648811982206152, which contains 22 as substring.

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, 1500934 + ... + 1500945.

It is an arithmetic number, because the mean of its divisors is an integer number (4502820).

Almost surely, 2^18011274 is an apocalyptic number.

18011274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18011274 is a wasteful number, since it uses less digits than its factorization.

18011274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001884.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 18011274 is about 4243.9691327812. The cubic root of 18011274 is about 262.1288432580.

The spelling of 18011274 in words is "eighteen million, eleven thousand, two hundred seventy-four".