2040431 has 2 divisors, whose sum is σ = 2040432. Its totient is φ = 2040430.

The previous prime is 2040427. The next prime is 2040433. The reversal of 2040431 is 1340402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2040431 - 2² = 2040427 is a prime.

It is a super-2 number, since 2×2040431² = 8326717331522, which contains 22 as substring.

Together with 2040433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040433) 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, 1020215 + 1020216.

It is an arithmetic number, because the mean of its divisors is an integer number (1020216).

2^2040431 is an apocalyptic number.

2040431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040431 is an equidigital number, since it uses as much as digits as its factorization.

2040431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2040431 is about 1428.4365579192. The cubic root of 2040431 is about 126.8354452153.

Adding to 2040431 its reverse (1340402), we get a palindrome (3380833).

The spelling of 2040431 in words is "two million, forty thousand, four hundred thirty-one".