3115355440 has 40 divisors (see below), whose sum is σ = 7273552320. Its totient is φ = 1240920576.

The previous prime is 3115355413. The next prime is 3115355483. The reversal of 3115355440 is 445535113.

It is a tau number, because it is divible by the number of its divisors (40).

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, 62349 + ... + 100588.

It is an arithmetic number, because the mean of its divisors is an integer number (181838808).

Almost surely, 2^3115355440 is an apocalyptic number.

It is an amenable number.

3115355440 is an abundant number, since it is smaller than the sum of its proper divisors (4158196880).

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

3115355440 is a wasteful number, since it uses less digits than its factorization.

3115355440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163189 (or 163183 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 3115355440 is about 55815.3692095645. The cubic root of 3115355440 is about 1460.5032730484.

The spelling of 3115355440 in words is "three billion, one hundred fifteen million, three hundred fifty-five thousand, four hundred forty".