2490293 has 4 divisors (see below), whose sum is σ = 2681868. Its totient is φ = 2298720.

The previous prime is 2490283. The next prime is 2490307. The reversal of 2490293 is 3920942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 305809 + 2184484 = 553^2 + 1478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2490293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95768 + ... + 95793.

It is an arithmetic number, because the mean of its divisors is an integer number (670467).

2^2490293 is an apocalyptic number.

It is an amenable number.

2490293 is a deficient number, since it is larger than the sum of its proper divisors (191575).

2490293 is a wasteful number, since it uses less digits than its factorization.

2490293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191574.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2490293 is about 1578.0662216777. The cubic root of 2490293 is about 135.5449939764.

The spelling of 2490293 in words is "two million, four hundred ninety thousand, two hundred ninety-three".