2218494294 has 12 divisors (see below), whose sum is σ = 4806737676. Its totient is φ = 739498092.

The previous prime is 2218494281. The next prime is 2218494307. The reversal of 2218494294 is 4924948122.

2218494294 is a `hidden beast` number, since 2 + 218 + 4 + 9 + 429 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (2218494281) and next prime (2218494307).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61624824 + ... + 61624859.

It is an arithmetic number, because the mean of its divisors is an integer number (400561473).

Almost surely, 2^2218494294 is an apocalyptic number.

2218494294 is an abundant number, since it is smaller than the sum of its proper divisors (2588243382).

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

2218494294 is a wasteful number, since it uses less digits than its factorization.

2218494294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123249691 (or 123249688 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 2218494294 is about 47100.8948322641. The cubic root of 2218494294 is about 1304.2257546806.

The spelling of 2218494294 in words is "two billion, two hundred eighteen million, four hundred ninety-four thousand, two hundred ninety-four".