2015040889 has 16 divisors (see below), whose sum is σ = 2205743616. Its totient is φ = 1832544000.

The previous prime is 2015040869. The next prime is 2015040893. The reversal of 2015040889 is 9880405102.

It is a cyclic number.

It is not a de Polignac number, because 2015040889 - 2¹¹ = 2015038841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2015040869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396414 + ... + 401464.

It is an arithmetic number, because the mean of its divisors is an integer number (137858976).

Almost surely, 2^2015040889 is an apocalyptic number.

It is an amenable number.

2015040889 is a deficient number, since it is larger than the sum of its proper divisors (190702727).

2015040889 is a wasteful number, since it uses less digits than its factorization.

2015040889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 2015040889 is about 44889.2068207938. The cubic root of 2015040889 is about 1263.0715540903.

The spelling of 2015040889 in words is "two billion, fifteen million, forty thousand, eight hundred eighty-nine".