1133223444 has 18 divisors (see below), whose sum is σ = 2864537130. Its totient is φ = 377741136.

The previous prime is 1133223431. The next prime is 1133223463. The reversal of 1133223444 is 4443223311.

It can be written as a sum of positive squares in only one way, i.e., 1012003344 + 121220100 = 31812^2 + 11010^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1133223444² = 2568390748062442272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15739179 + ... + 15739250.

Almost surely, 2^1133223444 is an apocalyptic number.

It is an amenable number.

1133223444 is an abundant number, since it is smaller than the sum of its proper divisors (1731313686).

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

1133223444 is a wasteful number, since it uses less digits than its factorization.

1133223444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31478439 (or 31478434 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1133223444 is about 33663.3843218414. The cubic root of 1133223444 is about 1042.5699030124.

Adding to 1133223444 its reverse (4443223311), we get a palindrome (5576446755).

The spelling of 1133223444 in words is "one billion, one hundred thirty-three million, two hundred twenty-three thousand, four hundred forty-four".