2390431 has 2 divisors, whose sum is σ = 2390432. Its totient is φ = 2390430.

The previous prime is 2390429. The next prime is 2390449. The reversal of 2390431 is 1340932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2390431 - 2¹ = 2390429 is a prime.

It is a super-2 number, since 2×2390431² = 11428320731522, which contains 22 as substring.

Together with 2390429, it forms a pair of twin primes.

It is an Ulam number.

It is a plaindrome in base 16.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2390411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195215 + 1195216.

It is an arithmetic number, because the mean of its divisors is an integer number (1195216).

2^2390431 is an apocalyptic number.

2390431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2390431 is an equidigital number, since it uses as much as digits as its factorization.

2390431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2390431 is about 1546.1018724521. The cubic root of 2390431 is about 133.7084140081.

The spelling of 2390431 in words is "two million, three hundred ninety thousand, four hundred thirty-one".