2490688 has 14 divisors (see below), whose sum is σ = 4942586. Its totient is φ = 1245312.

The previous prime is 2490679. The next prime is 2490701. The reversal of 2490688 is 8860942.

It can be written as a sum of positive squares in only one way, i.e., 1658944 + 831744 = 1288^2 + 912^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19395 + ... + 19522.

2^2490688 is an apocalyptic number.

It is an amenable number.

2490688 is a deficient number, since it is larger than the sum of its proper divisors (2451898).

2490688 is an equidigital number, since it uses as much as digits as its factorization.

2490688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38929 (or 38919 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2490688 is about 1578.1913698915. The cubic root of 2490688 is about 135.5521601268.

The spelling of 2490688 in words is "two million, four hundred ninety thousand, six hundred eighty-eight".