2490866 has 16 divisors (see below), whose sum is σ = 4358400. Its totient is φ = 1067220.

The previous prime is 2490847. The next prime is 2490869. The reversal of 2490866 is 6680942.

It is not an unprimeable number, because it can be changed into a prime (2490869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (272400).

2^2490866 is an apocalyptic number.

2490866 is a deficient number, since it is larger than the sum of its proper divisors (1867534).

2490866 is an equidigital number, since it uses as much as digits as its factorization.

2490866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654 (or 3640 counting only the distinct ones).

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

The square root of 2490866 is about 1578.2477625519. The cubic root of 2490866 is about 135.5553891823. Note that the first 3 decimals are identical.

The spelling of 2490866 in words is "two million, four hundred ninety thousand, eight hundred sixty-six".