18823264 has 24 divisors (see below), whose sum is σ = 37964808. Its totient is φ = 9181440.

The previous prime is 18823261. The next prime is 18823271. The reversal of 18823264 is 46232881.

It is a super-2 number, since 2×18823264² = 708630535227392, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18823261) 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 3 ways as a sum of consecutive naturals, for example, 5862 + ... + 8485.

It is an arithmetic number, because the mean of its divisors is an integer number (1581867).

Almost surely, 2^18823264 is an apocalyptic number.

It is an amenable number.

18823264 is an abundant number, since it is smaller than the sum of its proper divisors (19141544).

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

18823264 is a wasteful number, since it uses less digits than its factorization.

18823264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14398 (or 14390 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 18823264 is about 4338.5785690708. The cubic root of 18823264 is about 266.0102131115.

The spelling of 18823264 in words is "eighteen million, eight hundred twenty-three thousand, two hundred sixty-four".