3218485228 has 72 divisors (see below), whose sum is σ = 6641913600. Its totient is φ = 1360558080.

The previous prime is 3218485189. The next prime is 3218485267. The reversal of 3218485228 is 8225848123.

It is an interprime number because it is at equal distance from previous prime (3218485189) and next prime (3218485267).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5577676 + ... + 5578252.

It is an arithmetic number, because the mean of its divisors is an integer number (92248800).

Almost surely, 2^3218485228 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 3218485228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3320956800).

3218485228 is an abundant number, since it is smaller than the sum of its proper divisors (3423428372).

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

3218485228 is a wasteful number, since it uses less digits than its factorization.

3218485228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 926 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 3218485228 is about 56731.6950918973. The cubic root of 3218485228 is about 1476.4446599364. Note that the first 3 decimals are identical.

The spelling of 3218485228 in words is "three billion, two hundred eighteen million, four hundred eighty-five thousand, two hundred twenty-eight".