2231044128 has 96 divisors (see below), whose sum is σ = 6645784320. Its totient is φ = 727845120.

The previous prime is 2231044111. The next prime is 2231044139. The reversal of 2231044128 is 8214401322.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×2231044128³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13138 + ... + 68078.

It is an arithmetic number, because the mean of its divisors is an integer number (69226920).

Almost surely, 2^2231044128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231044128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3322892160).

2231044128 is an abundant number, since it is smaller than the sum of its proper divisors (4414740192).

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

2231044128 is a wasteful number, since it uses less digits than its factorization.

2231044128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55007 (or 54993 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2231044128 is about 47233.9298386234. The cubic root of 2231044128 is about 1306.6804299999.

The spelling of 2231044128 in words is "two billion, two hundred thirty-one million, forty-four thousand, one hundred twenty-eight".