2015898 has 16 divisors (see below), whose sum is σ = 4056480. Its totient is φ = 667856.

The previous prime is 2015879. The next prime is 2015921. The reversal of 2015898 is 8985102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136 + ... + 2012.

It is an arithmetic number, because the mean of its divisors is an integer number (253530).

2^2015898 is an apocalyptic number.

2015898 is an abundant number, since it is smaller than the sum of its proper divisors (2040582).

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

2015898 is a wasteful number, since it uses less digits than its factorization.

2015898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 2015898 is about 1419.8232284337. The cubic root of 2015898 is about 126.3250613991.

The spelling of 2015898 in words is "two million, fifteen thousand, eight hundred ninety-eight".