18232668 has 48 divisors (see below), whose sum is σ = 47500320. Its totient is φ = 6048000.

The previous prime is 18232667. The next prime is 18232727. The reversal of 18232668 is 86623281.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18232661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43098 + ... + 43518.

It is an arithmetic number, because the mean of its divisors is an integer number (989590).

Almost surely, 2^18232668 is an apocalyptic number.

18232668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18232668 is an abundant number, since it is smaller than the sum of its proper divisors (29267652).

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

18232668 is a wasteful number, since it uses less digits than its factorization.

18232668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 827 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 18232668 is about 4269.9728336372. The cubic root of 18232668 is about 263.1984988659.

The spelling of 18232668 in words is "eighteen million, two hundred thirty-two thousand, six hundred sixty-eight".