2490489 has 6 divisors (see below), whose sum is σ = 3597386. Its totient is φ = 1660320.

The previous prime is 2490479. The next prime is 2490493. The reversal of 2490489 is 9840942.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1863225 + 627264 = 1365^2 + 792^2 .

It is not a de Polignac number, because 2490489 - 2⁴ = 2490473 is a prime.

It is a Duffinian number.

2490489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2490469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138352 + ... + 138369.

2^2490489 is an apocalyptic number.

It is an amenable number.

2490489 is a deficient number, since it is larger than the sum of its proper divisors (1106897).

2490489 is a wasteful number, since it uses less digits than its factorization.

2490489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276727 (or 276724 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2490489 is about 1578.1283217787. The cubic root of 2490489 is about 135.5485499331.

Subtracting from 2490489 its product of nonzero digits (20736), we obtain a triangular number (2469753 = T₂₂₂₂).

The spelling of 2490489 in words is "two million, four hundred ninety thousand, four hundred eighty-nine".