2015432380 has 96 divisors (see below), whose sum is σ = 4694215680. Its totient is φ = 722192640.

The previous prime is 2015432371. The next prime is 2015432407. The reversal of 2015432380 is 832345102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1600191 + ... + 1601449.

It is an arithmetic number, because the mean of its divisors is an integer number (48898080).

Almost surely, 2^2015432380 is an apocalyptic number.

2015432380 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 2015432380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2347107840).

2015432380 is an abundant number, since it is smaller than the sum of its proper divisors (2678783300).

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

2015432380 is a wasteful number, since it uses less digits than its factorization.

2015432380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2015432380 is about 44893.5672452079. The cubic root of 2015432380 is about 1263.1533471577.

Adding to 2015432380 its reverse (832345102), we get a palindrome (2847777482).

The spelling of 2015432380 in words is "two billion, fifteen million, four hundred thirty-two thousand, three hundred eighty".