2257817284 has 12 divisors (see below), whose sum is σ = 3963646764. Its totient is φ = 1125346784.

The previous prime is 2257817213. The next prime is 2257817321. The reversal of 2257817284 is 4827187522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 994014784 + 1263802500 = 31528^2 + 35550^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889039 + ... + 891574.

It is an arithmetic number, because the mean of its divisors is an integer number (330303897).

Almost surely, 2^2257817284 is an apocalyptic number.

It is an amenable number.

2257817284 is a deficient number, since it is larger than the sum of its proper divisors (1705829480).

2257817284 is a wasteful number, since it uses less digits than its factorization.

2257817284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780934 (or 1780932 counting only the distinct ones).

The product of its digits is 501760, while the sum is 46.

The square root of 2257817284 is about 47516.4948623107. The cubic root of 2257817284 is about 1311.8865044409.

The spelling of 2257817284 in words is "two billion, two hundred fifty-seven million, eight hundred seventeen thousand, two hundred eighty-four".