2257989688 has 16 divisors (see below), whose sum is σ = 4234947480. Its totient is φ = 1128670368.

The previous prime is 2257989673. The next prime is 2257989707. The reversal of 2257989688 is 8869897522.

It is a super-2 number, since 2×2257989688² = 10197034862228674688, which contains 22 as substring.

It is a congruent number.

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, 9595 + ... + 67882.

Almost surely, 2^2257989688 is an apocalyptic number.

It is an amenable number.

2257989688 is a deficient number, since it is larger than the sum of its proper divisors (1976957792).

2257989688 is a wasteful number, since it uses less digits than its factorization.

2257989688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81126 (or 81122 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 64.

The square root of 2257989688 is about 47518.3089766460. The cubic root of 2257989688 is about 1311.9198949085.

The spelling of 2257989688 in words is "two billion, two hundred fifty-seven million, nine hundred eighty-nine thousand, six hundred eighty-eight".