218495074 has 16 divisors (see below), whose sum is σ = 375408000. Its totient is φ = 93429504.

The previous prime is 218495071. The next prime is 218495087. The reversal of 218495074 is 470594812.

It is not an unprimeable number, because it can be changed into a prime (218495071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11094 + ... + 23665.

It is an arithmetic number, because the mean of its divisors is an integer number (23463000).

Almost surely, 2^218495074 is an apocalyptic number.

218495074 is a deficient number, since it is larger than the sum of its proper divisors (156912926).

218495074 is a wasteful number, since it uses less digits than its factorization.

218495074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35217.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 218495074 is about 14781.5788737198. The cubic root of 218495074 is about 602.3014148996.

The spelling of 218495074 in words is "two hundred eighteen million, four hundred ninety-five thousand, seventy-four".