2240431 has 2 divisors, whose sum is σ = 2240432. Its totient is φ = 2240430.

The previous prime is 2240389. The next prime is 2240449. The reversal of 2240431 is 1340422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240431 is a prime.

It is a super-2 number, since 2×2240431² = 10039062131522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240471) 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, 1120215 + 1120216.

It is an arithmetic number, because the mean of its divisors is an integer number (1120216).

2^2240431 is an apocalyptic number.

2240431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240431 is an equidigital number, since it uses as much as digits as its factorization.

2240431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2240431 is about 1496.8069347782. The cubic root of 2240431 is about 130.8510437121.

Adding to 2240431 its reverse (1340422), we get a palindrome (3580853).

Subtracting from 2240431 its reverse (1340422), we obtain a palindrome (900009).

The spelling of 2240431 in words is "two million, two hundred forty thousand, four hundred thirty-one".