18368832 has 56 divisors (see below), whose sum is σ = 50292000. Its totient is φ = 5910016.

The previous prime is 18368827. The next prime is 18368837. The reversal of 18368832 is 23886381.

It is an interprime number because it is at equal distance from previous prime (18368827) and next prime (18368837).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18368837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3919 + ... + 7217.

Almost surely, 2^18368832 is an apocalyptic number.

18368832 is a gapful number since it is divisible by the number (12) 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 18368832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25146000).

18368832 is an abundant number, since it is smaller than the sum of its proper divisors (31923168).

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

18368832 is a wasteful number, since it uses less digits than its factorization.

18368832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343 (or 3333 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 18368832 is about 4285.8875393552. The cubic root of 18368832 is about 263.8520750730.

The spelling of 18368832 in words is "eighteen million, three hundred sixty-eight thousand, eight hundred thirty-two".