2490660 has 72 divisors (see below), whose sum is σ = 7685496. Its totient is φ = 652800.

The previous prime is 2490659. The next prime is 2490661. The reversal of 2490660 is 660942.

It is an interprime number because it is at equal distance from previous prime (2490659) and next prime (2490661).

It can be written as a sum of positive squares in 4 ways, for example, as 933156 + 1557504 = 966^2 + 1248^2 .

It is not an unprimeable number, because it can be changed into a prime (2490661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18112 + ... + 18248.

It is an arithmetic number, because the mean of its divisors is an integer number (106743).

2^2490660 is an apocalyptic number.

2490660 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 2490660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3842748).

2490660 is an abundant number, since it is smaller than the sum of its proper divisors (5194836).

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

2490660 is a wasteful number, since it uses less digits than its factorization.

2490660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2490660 is about 1578.1824989525. The cubic root of 2490660 is about 135.5516521714.

The spelling of 2490660 in words is "two million, four hundred ninety thousand, six hundred sixty".