2340044257 has 2 divisors, whose sum is σ = 2340044258. Its totient is φ = 2340044256.

The previous prime is 2340044183. The next prime is 2340044261. The reversal of 2340044257 is 7524400432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1756531921 + 583512336 = 41911^2 + 24156^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340044257 - 2⁷ = 2340044129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2340044297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170022128 + 1170022129.

It is an arithmetic number, because the mean of its divisors is an integer number (1170022129).

Almost surely, 2^2340044257 is an apocalyptic number.

It is an amenable number.

2340044257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340044257 is an equidigital number, since it uses as much as digits as its factorization.

2340044257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 2340044257 is about 48374.0039380657. The cubic root of 2340044257 is about 1327.6227640424.

Adding to 2340044257 its reverse (7524400432), we get a palindrome (9864444689).

The spelling of 2340044257 in words is "two billion, three hundred forty million, forty-four thousand, two hundred fifty-seven".