18416852240 has 40 divisors (see below), whose sum is σ = 43730236800. Its totient is φ = 7210000256.

The previous prime is 18416852191. The next prime is 18416852263. The reversal of 18416852240 is 4225861481.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2445290 + ... + 2452809.

It is an arithmetic number, because the mean of its divisors is an integer number (1093255920).

Almost surely, 2^18416852240 is an apocalyptic number.

18416852240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18416852240 is an abundant number, since it is smaller than the sum of its proper divisors (25313384560).

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

18416852240 is a wasteful number, since it uses less digits than its factorization.

18416852240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898159 (or 4898153 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 18416852240 in words is "eighteen billion, four hundred sixteen million, eight hundred fifty-two thousand, two hundred forty".