3218494956 has 24 divisors (see below), whose sum is σ = 7612697904. Its totient is φ = 1058135040.

The previous prime is 3218494943. The next prime is 3218494967. The reversal of 3218494956 is 6594948123.

It is a junction number, because it is equal to n+sod(n) for n = 3218494899 and 3218494908.

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, 1836165 + ... + 1837916.

It is an arithmetic number, because the mean of its divisors is an integer number (317195746).

Almost surely, 2^3218494956 is an apocalyptic number.

It is an amenable number.

3218494956 is an abundant number, since it is smaller than the sum of its proper divisors (4394202948).

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

3218494956 is a wasteful number, since it uses less digits than its factorization.

3218494956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674161 (or 3674159 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 3218494956 is about 56731.7808287383. The cubic root of 3218494956 is about 1476.4461474726.

The spelling of 3218494956 in words is "three billion, two hundred eighteen million, four hundred ninety-four thousand, nine hundred fifty-six".