3115515040 has 96 divisors (see below), whose sum is σ = 8044940736. Its totient is φ = 1130741760.

The previous prime is 3115515017. The next prime is 3115515061. The reversal of 3115515040 is 405155113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3115514996 and 3115515014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130304 + ... + 1133056.

It is an arithmetic number, because the mean of its divisors is an integer number (83801466).

Almost surely, 2^3115515040 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 3115515040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4022470368).

3115515040 is an abundant number, since it is smaller than the sum of its proper divisors (4929425696).

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

3115515040 is a wasteful number, since it uses less digits than its factorization.

3115515040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422 (or 3414 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 3115515040 is about 55816.7989049892. The cubic root of 3115515040 is about 1460.5282132033.

The spelling of 3115515040 in words is "three billion, one hundred fifteen million, five hundred fifteen thousand, forty".