18408340200 has 48 divisors (see below), whose sum is σ = 57065856480. Its totient is φ = 4908890560.

The previous prime is 18408340199. The next prime is 18408340213. The reversal of 18408340200 is 204380481.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15339684 + ... + 15340883.

It is an arithmetic number, because the mean of its divisors is an integer number (1188872010).

Almost surely, 2^18408340200 is an apocalyptic number.

18408340200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18408340200 is an abundant number, since it is smaller than the sum of its proper divisors (38657516280).

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

18408340200 is a wasteful number, since it uses less digits than its factorization.

18408340200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30680586 (or 30680577 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 18408340200 in words is "eighteen billion, four hundred eight million, three hundred forty thousand, two hundred".