2270249257 has 16 divisors (see below), whose sum is σ = 2485739520. Its totient is φ = 2065424400.

The previous prime is 2270249243. The next prime is 2270249297. The reversal of 2270249257 is 7529420722.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2270249257 - 2⁷ = 2270249129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2270249227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62448 + ... + 91870.

It is an arithmetic number, because the mean of its divisors is an integer number (155358720).

Almost surely, 2^2270249257 is an apocalyptic number.

It is an amenable number.

2270249257 is a deficient number, since it is larger than the sum of its proper divisors (215490263).

2270249257 is a wasteful number, since it uses less digits than its factorization.

2270249257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29604.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 2270249257 is about 47647.1327259049. The cubic root of 2270249257 is about 1314.2899310958.

Adding to 2270249257 its reverse (7529420722), we get a palindrome (9799669979).

The spelling of 2270249257 in words is "two billion, two hundred seventy million, two hundred forty-nine thousand, two hundred fifty-seven".