2133440444 has 6 divisors (see below), whose sum is σ = 3733520784. Its totient is φ = 1066720220.

The previous prime is 2133440443. The next prime is 2133440489. The reversal of 2133440444 is 4440443312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133440443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266680052 + ... + 266680059.

It is an arithmetic number, because the mean of its divisors is an integer number (622253464).

Almost surely, 2^2133440444 is an apocalyptic number.

It is an amenable number.

2133440444 is a deficient number, since it is larger than the sum of its proper divisors (1600080340).

2133440444 is a wasteful number, since it uses less digits than its factorization.

2133440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533360115 (or 533360113 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 2133440444 is about 46189.1810275956. The cubic root of 2133440444 is about 1287.3407237410.

Adding to 2133440444 its reverse (4440443312), we get a palindrome (6573883756).

The spelling of 2133440444 in words is "two billion, one hundred thirty-three million, four hundred forty thousand, four hundred forty-four".