2015309120 has 112 divisors (see below), whose sum is σ = 5258385216. Its totient is φ = 729600000.

The previous prime is 2015309113. The next prime is 2015309137. The reversal of 2015309120 is 219035102.

It is a super-2 number, since 2×2015309120² = 8122941698310348800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882380 + ... + 884660.

It is an arithmetic number, because the mean of its divisors is an integer number (46949868).

Almost surely, 2^2015309120 is an apocalyptic number.

2015309120 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 2015309120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2629192608).

2015309120 is an abundant number, since it is smaller than the sum of its proper divisors (3243076096).

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

2015309120 is a wasteful number, since it uses less digits than its factorization.

2015309120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2550 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 2015309120 is about 44892.1944217478. The cubic root of 2015309120 is about 1263.1275959497.

The spelling of 2015309120 in words is "two billion, fifteen million, three hundred nine thousand, one hundred twenty".