2231304444 has 72 divisors (see below), whose sum is σ = 5958592640. Its totient is φ = 702071712.

The previous prime is 2231304437. The next prime is 2231304487. The reversal of 2231304444 is 4444031322.

It is a happy number.

2231304444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231304444³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187809 + ... + 199335.

Almost surely, 2^2231304444 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 2231304444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2979296320).

2231304444 is an abundant number, since it is smaller than the sum of its proper divisors (3727288196).

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

2231304444 is a wasteful number, since it uses less digits than its factorization.

2231304444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11839 (or 11834 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2231304444 is about 47236.6853621208. The cubic root of 2231304444 is about 1306.7312487458.

Adding to 2231304444 its reverse (4444031322), we get a palindrome (6675335766).

The spelling of 2231304444 in words is "two billion, two hundred thirty-one million, three hundred four thousand, four hundred forty-four".