2515240 has 64 divisors (see below), whose sum is σ = 6975360. Its totient is φ = 794880.

The previous prime is 2515237. The next prime is 2515241. The reversal of 2515240 is 425152.

It is not an unprimeable number, because it can be changed into a prime (2515241) 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, 3295 + ... + 3985.

It is an arithmetic number, because the mean of its divisors is an integer number (108990).

2^2515240 is an apocalyptic number.

2515240 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 2515240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3487680).

2515240 is an abundant number, since it is smaller than the sum of its proper divisors (4460120).

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

2515240 is a wasteful number, since it uses less digits than its factorization.

2515240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2515240 is about 1585.9508189096. The cubic root of 2515240 is about 135.9961071550.

The spelling of 2515240 in words is "two million, five hundred fifteen thousand, two hundred forty".