18046464 has 80 divisors (see below), whose sum is σ = 49758720. Its totient is φ = 5806080.

The previous prime is 18046411. The next prime is 18046477. The reversal of 18046464 is 46464081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47427 + ... + 47805.

It is an arithmetic number, because the mean of its divisors is an integer number (621984).

Almost surely, 2^18046464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18046464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24879360).

18046464 is an abundant number, since it is smaller than the sum of its proper divisors (31712256).

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

18046464 is an equidigital number, since it uses as much as digits as its factorization.

18046464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 18046464 is about 4248.1129928475. The cubic root of 18046464 is about 262.2994459055.

The spelling of 18046464 in words is "eighteen million, forty-six thousand, four hundred sixty-four".