1144402312 has 16 divisors (see below), whose sum is σ = 2175149340. Its totient is φ = 564362496.

The previous prime is 1144402309. The next prime is 1144402333. The reversal of 1144402312 is 2132044411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1111155556 + 33246756 = 33334^2 + 5766^2 .

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 3 ways as a sum of consecutive naturals, for example, 979213 + ... + 980380.

Almost surely, 2^1144402312 is an apocalyptic number.

It is an amenable number.

1144402312 is a deficient number, since it is larger than the sum of its proper divisors (1030747028).

1144402312 is a wasteful number, since it uses less digits than its factorization.

1144402312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959672 (or 1959668 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1144402312 is about 33829.0158296099. The cubic root of 1144402312 is about 1045.9868921458.

Adding to 1144402312 its reverse (2132044411), we get a palindrome (3276446723).

The spelling of 1144402312 in words is "one billion, one hundred forty-four million, four hundred two thousand, three hundred twelve".