3220244992 has 80 divisors (see below), whose sum is σ = 6890887080. Its totient is φ = 1498021888.

The previous prime is 3220244983. The next prime is 3220245023. The reversal of 3220244992 is 2994420223.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2652662016 + 567582976 = 51504^2 + 23824^2 .

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, 772578 + ... + 776734.

Almost surely, 2^3220244992 is an apocalyptic number.

3220244992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220244992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3445443540).

3220244992 is an abundant number, since it is smaller than the sum of its proper divisors (3670642088).

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

3220244992 is an equidigital number, since it uses as much as digits as its factorization.

3220244992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281 (or 4265 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 3220244992 is about 56747.2025037358. The cubic root of 3220244992 is about 1476.7137016941.

The spelling of 3220244992 in words is "three billion, two hundred twenty million, two hundred forty-four thousand, nine hundred ninety-two".