2257946 has 8 divisors (see below), whose sum is σ = 3410100. Its totient is φ = 1121248.

The previous prime is 2257943. The next prime is 2257949. The reversal of 2257946 is 6497522.

It is an interprime number because it is at equal distance from previous prime (2257943) and next prime (2257949).

It can be written as a sum of positive squares in 2 ways, for example, as 1600225 + 657721 = 1265^2 + 811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3491 + ... + 4086.

2^2257946 is an apocalyptic number.

2257946 is a deficient number, since it is larger than the sum of its proper divisors (1152154).

2257946 is a wasteful number, since it uses less digits than its factorization.

2257946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728.

The product of its digits is 30240, while the sum is 35.

The square root of 2257946 is about 1502.6463323084. The cubic root of 2257946 is about 131.1911433765.

The spelling of 2257946 in words is "two million, two hundred fifty-seven thousand, nine hundred forty-six".