2240857 has 2 divisors, whose sum is σ = 2240858. Its totient is φ = 2240856.

The previous prime is 2240851. The next prime is 2240863. The reversal of 2240857 is 7580422.

It is a balanced prime because it is at equal distance from previous prime (2240851) and next prime (2240863).

It can be written as a sum of positive squares in only one way, i.e., 1125721 + 1115136 = 1061^2 + 1056^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240857 - 2¹¹ = 2238809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2240851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120428 + 1120429.

It is an arithmetic number, because the mean of its divisors is an integer number (1120429).

2^2240857 is an apocalyptic number.

It is an amenable number.

2240857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240857 is an equidigital number, since it uses as much as digits as its factorization.

2240857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2240857 is about 1496.9492309360. The cubic root of 2240857 is about 130.8593366123.

The spelling of 2240857 in words is "two million, two hundred forty thousand, eight hundred fifty-seven".