2015883820 has 24 divisors (see below), whose sum is σ = 4280925600. Its totient is φ = 797292672.

The previous prime is 2015883809. The next prime is 2015883847. The reversal of 2015883820 is 283885102.

It is a self number, because there is not a number n which added to its sum of digits gives 2015883820.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564480 + ... + 568039.

It is an arithmetic number, because the mean of its divisors is an integer number (178371900).

Almost surely, 2^2015883820 is an apocalyptic number.

2015883820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015883820 is an abundant number, since it is smaller than the sum of its proper divisors (2265041780).

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

2015883820 is a wasteful number, since it uses less digits than its factorization.

2015883820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132617 (or 1132615 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2015883820 is about 44898.5948555186. The cubic root of 2015883820 is about 1263.2476520460.

The spelling of 2015883820 in words is "two billion, fifteen million, eight hundred eighty-three thousand, eight hundred twenty".