3320307440 has 80 divisors (see below), whose sum is σ = 8031048480. Its totient is φ = 1275079680.

The previous prime is 3320307427. The next prime is 3320307457. The reversal of 3320307440 is 447030233.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3320307440² = 22048882992238707200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415967 + ... + 423873.

It is an arithmetic number, because the mean of its divisors is an integer number (100388106).

Almost surely, 2^3320307440 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 3320307440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015524240).

3320307440 is an abundant number, since it is smaller than the sum of its proper divisors (4710741040).

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

3320307440 is a wasteful number, since it uses less digits than its factorization.

3320307440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8130 (or 8124 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 3320307440 is about 57622.1089513392. The cubic root of 3320307440 is about 1491.8532320704.

Adding to 3320307440 its reverse (447030233), we get a palindrome (3767337673).

The spelling of 3320307440 in words is "three billion, three hundred twenty million, three hundred seven thousand, four hundred forty".