1143444 has 12 divisors (see below), whose sum is σ = 2668064. Its totient is φ = 381144.

The previous prime is 1143433. The next prime is 1143469. The reversal of 1143444 is 4443411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1143444² = 2614928362272, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1143444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47632 + ... + 47655.

2^1143444 is an apocalyptic number.

It is an amenable number.

1143444 is an abundant number, since it is smaller than the sum of its proper divisors (1524620).

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

1143444 is a wasteful number, since it uses less digits than its factorization.

1143444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95294 (or 95292 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 1143444 is about 1069.3194097182. The cubic root of 1143444 is about 104.5694844001.

Adding to 1143444 its reverse (4443411), we get a palindrome (5586855).

The spelling of 1143444 in words is "one million, one hundred forty-three thousand, four hundred forty-four".