18004294 has 16 divisors (see below), whose sum is σ = 33670656. Its totient is φ = 7014600.

The previous prime is 18004291. The next prime is 18004313. The reversal of 18004294 is 49240081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18004291) 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, 58302 + ... + 58609.

It is an arithmetic number, because the mean of its divisors is an integer number (2104416).

Almost surely, 2^18004294 is an apocalyptic number.

18004294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18004294 is a deficient number, since it is larger than the sum of its proper divisors (15666362).

18004294 is a wasteful number, since it uses less digits than its factorization.

18004294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116931.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 18004294 is about 4243.1467096955. The cubic root of 18004294 is about 262.0949775113.

The spelling of 18004294 in words is "eighteen million, four thousand, two hundred ninety-four".