2231889738 has 32 divisors (see below), whose sum is σ = 4809025536. Its totient is φ = 686467008.

The previous prime is 2231889721. The next prime is 2231889749. The reversal of 2231889738 is 8379881322.

2231889738 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231889738³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305820 + ... + 313032.

It is an arithmetic number, because the mean of its divisors is an integer number (150282048).

Almost surely, 2^2231889738 is an apocalyptic number.

2231889738 is an abundant number, since it is smaller than the sum of its proper divisors (2577135798).

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

2231889738 is a wasteful number, since it uses less digits than its factorization.

2231889738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11198.

The product of its digits is 1161216, while the sum is 51.

The square root of 2231889738 is about 47242.8802889917. The cubic root of 2231889738 is about 1306.8454950854.

The spelling of 2231889738 in words is "two billion, two hundred thirty-one million, eight hundred eighty-nine thousand, seven hundred thirty-eight".