2231657808 has 20 divisors (see below), whose sum is σ = 5765116128. Its totient is φ = 743885920.

The previous prime is 2231657783. The next prime is 2231657809. The reversal of 2231657808 is 8087561322.

It is a super-3 number, since 3×2231657808³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231657808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231657809) 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, 23246388 + ... + 23246483.

Almost surely, 2^2231657808 is an apocalyptic number.

It is an amenable number.

2231657808 is an abundant number, since it is smaller than the sum of its proper divisors (3533458320).

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

2231657808 is a wasteful number, since it uses less digits than its factorization.

2231657808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46492882 (or 46492876 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2231657808 is about 47240.4255696326. The cubic root of 2231657808 is about 1306.8002259472.

The spelling of 2231657808 in words is "two billion, two hundred thirty-one million, six hundred fifty-seven thousand, eight hundred eight".