18830268 has 72 divisors (see below), whose sum is σ = 50319360. Its totient is φ = 5928480.

The previous prime is 18830257. The next prime is 18830281. The reversal of 18830268 is 86203881.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52273 + ... + 52631.

It is an arithmetic number, because the mean of its divisors is an integer number (698880).

Almost surely, 2^18830268 is an apocalyptic number.

18830268 is a gapful number since it is divisible by the number (18) 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 18830268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25159680).

18830268 is an abundant number, since it is smaller than the sum of its proper divisors (31489092).

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

18830268 is a wasteful number, since it uses less digits than its factorization.

18830268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 18830268 is about 4339.3856708064. The cubic root of 18830268 is about 266.0432025104.

The spelling of 18830268 in words is "eighteen million, eight hundred thirty thousand, two hundred sixty-eight".