218080473 has 12 divisors (see below), whose sum is σ = 314862480. Its totient is φ = 134203056.

The previous prime is 218080469. The next prime is 218080487. The reversal of 218080473 is 374080812.

It is not a de Polignac number, because 218080473 - 2² = 218080469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (218080433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214563 + ... + 215576.

It is an arithmetic number, because the mean of its divisors is an integer number (26238540).

Almost surely, 2^218080473 is an apocalyptic number.

It is an amenable number.

218080473 is a deficient number, since it is larger than the sum of its proper divisors (96782007).

218080473 is a wasteful number, since it uses less digits than its factorization.

218080473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430168 (or 430155 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 218080473 is about 14767.5479684340. The cubic root of 218080473 is about 601.9202119764.

The spelling of 218080473 in words is "two hundred eighteen million, eighty thousand, four hundred seventy-three".