2243957 has 8 divisors (see below), whose sum is σ = 2390400. Its totient is φ = 2100384.

The previous prime is 2243911. The next prime is 2243959. The reversal of 2243957 is 7593422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2243957 - 2⁶ = 2243893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (298800).

2^2243957 is an apocalyptic number.

It is an amenable number.

2243957 is a deficient number, since it is larger than the sum of its proper divisors (146443).

2243957 is a wasteful number, since it uses less digits than its factorization.

2243957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

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

The square root of 2243957 is about 1497.9843123344. The cubic root of 2243957 is about 130.9196523787.

The spelling of 2243957 in words is "two million, two hundred forty-three thousand, nine hundred fifty-seven".