3115548640 has 48 divisors (see below), whose sum is σ = 7376624640. Its totient is φ = 1243486720.

The previous prime is 3115548637. The next prime is 3115548649. The reversal of 3115548640 is 468455113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3115548640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115548649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52641 + ... + 94879.

It is an arithmetic number, because the mean of its divisors is an integer number (153679680).

Almost surely, 2^3115548640 is an apocalyptic number.

It is an amenable number.

3115548640 is an abundant number, since it is smaller than the sum of its proper divisors (4261076000).

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

3115548640 is a wasteful number, since it uses less digits than its factorization.

3115548640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42715 (or 42707 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 3115548640 is about 55817.0998888334. The cubic root of 3115548640 is about 1460.5334636537.

The spelling of 3115548640 in words is "three billion, one hundred fifteen million, five hundred forty-eight thousand, six hundred forty".