2257781082 has 16 divisors (see below), whose sum is σ = 4526941152. Its totient is φ = 750697200.

The previous prime is 2257781027. The next prime is 2257781087. The reversal of 2257781082 is 2801877522.

It is not an unprimeable number, because it can be changed into a prime (2257781087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471544 + ... + 476307.

It is an arithmetic number, because the mean of its divisors is an integer number (282933822).

Almost surely, 2^2257781082 is an apocalyptic number.

2257781082 is an abundant number, since it is smaller than the sum of its proper divisors (2269160070).

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

2257781082 is a wasteful number, since it uses less digits than its factorization.

2257781082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948253.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 2257781082 is about 47516.1139193853. The cubic root of 2257781082 is about 1311.8794927768.

The spelling of 2257781082 in words is "two billion, two hundred fifty-seven million, seven hundred eighty-one thousand, eighty-two".