3220277440 has 28 divisors (see below), whose sum is σ = 7668286416. Its totient is φ = 1288110848.

The previous prime is 3220277429. The next prime is 3220277461. The reversal of 3220277440 is 447720223.

3220277440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5031364 + ... + 5032003.

It is an arithmetic number, because the mean of its divisors is an integer number (273867372).

Almost surely, 2^3220277440 is an apocalyptic number.

It is an amenable number.

3220277440 is an abundant number, since it is smaller than the sum of its proper divisors (4448008976).

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

3220277440 is a wasteful number, since it uses less digits than its factorization.

3220277440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10063384 (or 10063374 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 3220277440 is about 56747.4884025716. The cubic root of 3220277440 is about 1476.7186615905.

Adding to 3220277440 its reverse (447720223), we get a palindrome (3667997663).

The spelling of 3220277440 in words is "three billion, two hundred twenty million, two hundred seventy-seven thousand, four hundred forty".