218740674 has 16 divisors (see below), whose sum is σ = 437793408. Its totient is φ = 72861552.

The previous prime is 218740663. The next prime is 218740747. The reversal of 218740674 is 476047812.

218740674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3337 + ... + 21180.

It is an arithmetic number, because the mean of its divisors is an integer number (27362088).

Almost surely, 2^218740674 is an apocalyptic number.

218740674 is an abundant number, since it is smaller than the sum of its proper divisors (219052734).

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

218740674 is a wasteful number, since it uses less digits than its factorization.

218740674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26009.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 218740674 is about 14789.8841780455. The cubic root of 218740674 is about 602.5270032605.

The spelling of 218740674 in words is "two hundred eighteen million, seven hundred forty thousand, six hundred seventy-four".