18000474 has 16 divisors (see below), whose sum is σ = 37242720. Its totient is φ = 5793200.

The previous prime is 18000473. The next prime is 18000527. The reversal of 18000474 is 47400081.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18000473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51552 + ... + 51899.

It is an arithmetic number, because the mean of its divisors is an integer number (2327670).

Almost surely, 2^18000474 is an apocalyptic number.

18000474 is an abundant number, since it is smaller than the sum of its proper divisors (19242246).

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

18000474 is a wasteful number, since it uses less digits than its factorization.

18000474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103485.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 18000474 is about 4242.6965481872. The cubic root of 18000474 is about 262.0764398293.

The spelling of 18000474 in words is "eighteen million, four hundred seventy-four", and thus it is an aban number.