2257646260 has 12 divisors (see below), whose sum is σ = 4741057188. Its totient is φ = 903058496.

The previous prime is 2257646221. The next prime is 2257646267. The reversal of 2257646260 is 626467522.

It can be written as a sum of positive squares in 2 ways, for example, as 718025616 + 1539620644 = 26796^2 + 39238^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257646267) 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, 56441137 + ... + 56441176.

It is an arithmetic number, because the mean of its divisors is an integer number (395088099).

Almost surely, 2^2257646260 is an apocalyptic number.

2257646260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2257646260 is an abundant number, since it is smaller than the sum of its proper divisors (2483410928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2257646260 is a wasteful number, since it uses less digits than its factorization.

2257646260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112882322 (or 112882320 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 2257646260 is about 47514.6952005377. The cubic root of 2257646260 is about 1311.8533795664.

The spelling of 2257646260 in words is "two billion, two hundred fifty-seven million, six hundred forty-six thousand, two hundred sixty".