2015313040 has 160 divisors (see below), whose sum is σ = 5253163776. Its totient is φ = 714147840.

The previous prime is 2015313017. The next prime is 2015313043. The reversal of 2015313040 is 403135102.

It is a super-2 number, since 2×2015313040² = 8122973298388083200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2015312999 and 2015313017.

It is not an unprimeable number, because it can be changed into a prime (2015313043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3193525 + ... + 3194155.

Almost surely, 2^2015313040 is an apocalyptic number.

2015313040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015313040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626581888).

2015313040 is an abundant number, since it is smaller than the sum of its proper divisors (3237850736).

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

2015313040 is a wasteful number, since it uses less digits than its factorization.

2015313040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2015313040 is about 44892.2380818778. The cubic root of 2015313040 is about 1263.1284149236.

Adding to 2015313040 its reverse (403135102), we get a palindrome (2418448142).

The spelling of 2015313040 in words is "two billion, fifteen million, three hundred thirteen thousand, forty".