18440233210 has 96 divisors (see below), whose sum is σ = 42411392640. Its totient is φ = 5729125248.

The previous prime is 18440233199. The next prime is 18440233243. The reversal of 18440233210 is 1233204481.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 171072 + ... + 257188.

It is an arithmetic number, because the mean of its divisors is an integer number (441785340).

Almost surely, 2^18440233210 is an apocalyptic number.

18440233210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18440233210 is an abundant number, since it is smaller than the sum of its proper divisors (23971159430).

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

18440233210 is a wasteful number, since it uses less digits than its factorization.

18440233210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86180 (or 86173 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 18440233210 its reverse (1233204481), we get a palindrome (19673437691).

The spelling of 18440233210 in words is "eighteen billion, four hundred forty million, two hundred thirty-three thousand, two hundred ten".