2257943 has 2 divisors, whose sum is σ = 2257944. Its totient is φ = 2257942.

The previous prime is 2257939. The next prime is 2257949. The reversal of 2257943 is 3497522.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2257943 - 2² = 2257939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2257949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128971 + 1128972.

It is an arithmetic number, because the mean of its divisors is an integer number (1128972).

2^2257943 is an apocalyptic number.

2257943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257943 is an equidigital number, since it uses as much as digits as its factorization.

2257943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 2257943 is about 1502.6453340692. The cubic root of 2257943 is about 131.1910852745.

It can be divided in two parts, 22579 and 43, that added together give a palindrome (22622).

The spelling of 2257943 in words is "two million, two hundred fifty-seven thousand, nine hundred forty-three".