2490451 has 2 divisors, whose sum is σ = 2490452. Its totient is φ = 2490450.

The previous prime is 2490421. The next prime is 2490461. The reversal of 2490451 is 1540942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2490451 - 2¹⁹ = 1966163 is a prime.

It is not a weakly prime, because it can be changed into another prime (2490421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245225 + 1245226.

It is an arithmetic number, because the mean of its divisors is an integer number (1245226).

2^2490451 is an apocalyptic number.

2490451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2490451 is an equidigital number, since it uses as much as digits as its factorization.

2490451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2490451 is about 1578.1162821541. The cubic root of 2490451 is about 135.5478605275.

The spelling of 2490451 in words is "two million, four hundred ninety thousand, four hundred fifty-one".