2218902444 has 96 divisors (see below), whose sum is σ = 6382252800. Its totient is φ = 660977280.

The previous prime is 2218902409. The next prime is 2218902463. The reversal of 2218902444 is 4442098122.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2218902399 and 2218902408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54264 + ... + 85920.

It is an arithmetic number, because the mean of its divisors is an integer number (66481800).

Almost surely, 2^2218902444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2218902444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3191126400).

2218902444 is an abundant number, since it is smaller than the sum of its proper divisors (4163350356).

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

2218902444 is a wasteful number, since it uses less digits than its factorization.

2218902444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31740 (or 31732 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 2218902444 is about 47105.2273532354. The cubic root of 2218902444 is about 1304.3057319128.

The spelling of 2218902444 in words is "two billion, two hundred eighteen million, nine hundred two thousand, four hundred forty-four".