2490140 has 24 divisors (see below), whose sum is σ = 5505360. Its totient is φ = 943488.

The previous prime is 2490139. The next prime is 2490157. The reversal of 2490140 is 410942.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2897 + ... + 3656.

It is an arithmetic number, because the mean of its divisors is an integer number (229390).

2^2490140 is an apocalyptic number.

2490140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2490140 is an abundant number, since it is smaller than the sum of its proper divisors (3015220).

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

2490140 is a wasteful number, since it uses less digits than its factorization.

2490140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581 (or 6579 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2490140 is about 1578.0177438800. The cubic root of 2490140 is about 135.5422180234.

The spelling of 2490140 in words is "two million, four hundred ninety thousand, one hundred forty".