18463764 has 48 divisors (see below), whose sum is σ = 47388096. Its totient is φ = 5548800.

The previous prime is 18463747. The next prime is 18463829. The reversal of 18463764 is 46736481.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17574 + ... + 18594.

It is an arithmetic number, because the mean of its divisors is an integer number (987252).

Almost surely, 2^18463764 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 18463764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23694048).

18463764 is an abundant number, since it is smaller than the sum of its proper divisors (28924332).

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

18463764 is a wasteful number, since it uses less digits than its factorization.

18463764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 18463764 is about 4296.9482193762. The cubic root of 18463764 is about 264.3058324384.

The spelling of 18463764 in words is "eighteen million, four hundred sixty-three thousand, seven hundred sixty-four".