1144064442 has 48 divisors (see below), whose sum is σ = 2494683360. Its totient is φ = 348796224.

The previous prime is 1144064417. The next prime is 1144064443. The reversal of 1144064442 is 2444604411.

It is not an unprimeable number, because it can be changed into a prime (1144064443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89908 + ... + 101840.

It is an arithmetic number, because the mean of its divisors is an integer number (51972570).

Almost surely, 2^1144064442 is an apocalyptic number.

1144064442 is an abundant number, since it is smaller than the sum of its proper divisors (1350618918).

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

1144064442 is a wasteful number, since it uses less digits than its factorization.

1144064442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015 (or 11986 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 1144064442 is about 33824.0216709959. The cubic root of 1144064442 is about 1045.8839439742.

Adding to 1144064442 its reverse (2444604411), we get a palindrome (3588668853).

Subtracting 1144064442 from its reverse (2444604411), we obtain a square (1300539969 = 36063²).

The spelling of 1144064442 in words is "one billion, one hundred forty-four million, sixty-four thousand, four hundred forty-two".