218474022 has 16 divisors (see below), whose sum is σ = 470559600. Its totient is φ = 67222752.

The previous prime is 218474017. The next prime is 218474051. The reversal of 218474022 is 220474812.

It is a congruent number.

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, 1400397 + ... + 1400552.

It is an arithmetic number, because the mean of its divisors is an integer number (29409975).

Almost surely, 2^218474022 is an apocalyptic number.

218474022 is an abundant number, since it is smaller than the sum of its proper divisors (252085578).

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

218474022 is a wasteful number, since it uses less digits than its factorization.

218474022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800967.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 218474022 is about 14780.8667540168. The cubic root of 218474022 is about 602.2820703649.

The spelling of 218474022 in words is "two hundred eighteen million, four hundred seventy-four thousand, twenty-two".