2015944 has 16 divisors (see below), whose sum is σ = 4320000. Its totient is φ = 863952.

The previous prime is 2015941. The next prime is 2015947. The reversal of 2015944 is 4495102.

It is an interprime number because it is at equal distance from previous prime (2015941) and next prime (2015947).

It is a super-2 number, since 2×2015944² = 8128060422272, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2015941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17944 + ... + 18055.

It is an arithmetic number, because the mean of its divisors is an integer number (270000).

2^2015944 is an apocalyptic number.

It is an amenable number.

2015944 is an abundant number, since it is smaller than the sum of its proper divisors (2304056).

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

2015944 is a wasteful number, since it uses less digits than its factorization.

2015944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36012 (or 36008 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2015944 is about 1419.8394275410. The cubic root of 2015944 is about 126.3260222461.

The spelling of 2015944 in words is "two million, fifteen thousand, nine hundred forty-four".