18200024240 has 20 divisors (see below), whose sum is σ = 42315056544. Its totient is φ = 7280009664.

The previous prime is 18200024221. The next prime is 18200024281. The reversal of 18200024240 is 4242000281.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113750072 + ... + 113750231.

Almost surely, 2^18200024240 is an apocalyptic number.

18200024240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18200024240 is an abundant number, since it is smaller than the sum of its proper divisors (24115032304).

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

18200024240 is a wasteful number, since it uses less digits than its factorization.

18200024240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227500316 (or 227500310 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The spelling of 18200024240 in words is "eighteen billion, two hundred million, twenty-four thousand, two hundred forty".