3115520040 has 32 divisors (see below), whose sum is σ = 9346560480. Its totient is φ = 830805312.

The previous prime is 3115520021. The next prime is 3115520047. The reversal of 3115520040 is 400255113.

It is a junction number, because it is equal to n+sod(n) for n = 3115519989 and 3115520016.

It is not an unprimeable number, because it can be changed into a prime (3115520047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12981214 + ... + 12981453.

It is an arithmetic number, because the mean of its divisors is an integer number (292080015).

Almost surely, 2^3115520040 is an apocalyptic number.

3115520040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3115520040 is an abundant number, since it is smaller than the sum of its proper divisors (6231040440).

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

3115520040 is a wasteful number, since it uses less digits than its factorization.

3115520040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25962681 (or 25962677 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 3115520040 is about 55816.8436943545. The cubic root of 3115520040 is about 1460.5289945227.

Adding to 3115520040 its reverse (400255113), we get a palindrome (3515775153).

The spelling of 3115520040 in words is "three billion, one hundred fifteen million, five hundred twenty thousand, forty".