18530232 has 64 divisors (see below), whose sum is σ = 54048000. Its totient is φ = 5292000.

The previous prime is 18530227. The next prime is 18530233. The reversal of 18530232 is 23203581.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18530233) 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, 7107 + ... + 9357.

It is an arithmetic number, because the mean of its divisors is an integer number (844500).

Almost surely, 2^18530232 is an apocalyptic number.

18530232 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 18530232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27024000).

18530232 is an abundant number, since it is smaller than the sum of its proper divisors (35517768).

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

18530232 is a wasteful number, since it uses less digits than its factorization.

18530232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2263 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 18530232 is about 4304.6755975335. The cubic root of 18530232 is about 264.6226122161.

The spelling of 18530232 in words is "eighteen million, five hundred thirty thousand, two hundred thirty-two".