2015240 has 32 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 795072.

The previous prime is 2015213. The next prime is 2015267. The reversal of 2015240 is 425102.

It is an interprime number because it is at equal distance from previous prime (2015213) and next prime (2015267).

It is a super-2 number, since 2×2015240² = 8122384515200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3017 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^2015240 is an apocalyptic number.

2015240 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 2015240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298240).

2015240 is an abundant number, since it is smaller than the sum of its proper divisors (2581240).

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

2015240 is a wasteful number, since it uses less digits than its factorization.

2015240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2015240 is about 1419.5914905352. The cubic root of 2015240 is about 126.3113155092.

The spelling of 2015240 in words is "two million, fifteen thousand, two hundred forty".