2490686 has 8 divisors (see below), whose sum is σ = 4075704. Its totient is φ = 1132120.

The previous prime is 2490679. The next prime is 2490701. The reversal of 2490686 is 6860942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56585 + ... + 56628.

It is an arithmetic number, because the mean of its divisors is an integer number (509463).

2^2490686 is an apocalyptic number.

2490686 is a deficient number, since it is larger than the sum of its proper divisors (1585018).

2490686 is a wasteful number, since it uses less digits than its factorization.

2490686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113226.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2490686 is about 1578.1907362547. The cubic root of 2490686 is about 135.5521238444.

The spelling of 2490686 in words is "two million, four hundred ninety thousand, six hundred eighty-six".