3320944640 has 288 divisors, whose sum is σ = 9172472400. Its totient is φ = 1150156800.

The previous prime is 3320944607. The next prime is 3320944651. The reversal of 3320944640 is 464490233.

It is a super-2 number, since 2×3320944640² = 22057346603889459200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3320944640.

It is a congruent number.

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, 32880590 + ... + 32880690.

Almost surely, 2^3320944640 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 3320944640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4586236200).

3320944640 is an abundant number, since it is smaller than the sum of its proper divisors (5851527760).

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

3320944640 is a wasteful number, since it uses less digits than its factorization.

3320944640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 3320944640 is about 57627.6378138129. The cubic root of 3320944640 is about 1491.9486597873.

The spelling of 3320944640 in words is "three billion, three hundred twenty million, nine hundred forty-four thousand, six hundred forty".