2490023 has 2 divisors, whose sum is σ = 2490024. Its totient is φ = 2490022.

The previous prime is 2489999. The next prime is 2490029. The reversal of 2490023 is 3200942.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2490023 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2489977 and 2490004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2490029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245011 + 1245012.

It is an arithmetic number, because the mean of its divisors is an integer number (1245012).

2^2490023 is an apocalyptic number.

2490023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2490023 is an equidigital number, since it uses as much as digits as its factorization.

2490023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2490023 is about 1577.9806716180. The cubic root of 2490023 is about 135.5400951591.

Adding to 2490023 its reverse (3200942), we get a palindrome (5690965).

The spelling of 2490023 in words is "two million, four hundred ninety thousand, twenty-three".