18202940480 has 56 divisors (see below), whose sum is σ = 43687154688. Its totient is φ = 7223827968.

The previous prime is 18202940449. The next prime is 18202940489. The reversal of 18202940480 is 8404920281.

It is not an unprimeable number, because it can be changed into a prime (18202940489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183314 + ... + 264593.

Almost surely, 2^18202940480 is an apocalyptic number.

18202940480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18202940480 is an abundant number, since it is smaller than the sum of its proper divisors (25484214208).

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

18202940480 is a wasteful number, since it uses less digits than its factorization.

18202940480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448051 (or 448041 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 18202940480 in words is "eighteen billion, two hundred two million, nine hundred forty thousand, four hundred eighty".