2490923 has 4 divisors (see below), whose sum is σ = 2599248. Its totient is φ = 2382600.

The previous prime is 2490907. The next prime is 2490931. The reversal of 2490923 is 3290942.

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

It is a cyclic number.

It is not a de Polignac number, because 2490923 - 2⁴ = 2490907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2490973) 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, 54128 + ... + 54173.

It is an arithmetic number, because the mean of its divisors is an integer number (649812).

2^2490923 is an apocalyptic number.

2490923 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2490923 is a deficient number, since it is larger than the sum of its proper divisors (108325).

2490923 is a wasteful number, since it uses less digits than its factorization.

2490923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108324.

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

The square root of 2490923 is about 1578.2658204498. The cubic root of 2490923 is about 135.5564231732.

The spelling of 2490923 in words is "two million, four hundred ninety thousand, nine hundred twenty-three".