18474904 has 32 divisors (see below), whose sum is σ = 39985920. Its totient is φ = 7838496.

The previous prime is 18474889. The next prime is 18474917. The reversal of 18474904 is 40947481.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4167 + ... + 7369.

It is an arithmetic number, because the mean of its divisors is an integer number (1249560).

Almost surely, 2^18474904 is an apocalyptic number.

18474904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18474904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19992960).

18474904 is an abundant number, since it is smaller than the sum of its proper divisors (21511016).

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

18474904 is a wasteful number, since it uses less digits than its factorization.

18474904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 18474904 is about 4298.2442927316. The cubic root of 18474904 is about 264.3589775251.

The spelling of 18474904 in words is "eighteen million, four hundred seventy-four thousand, nine hundred four".