1144663442 has 8 divisors (see below), whose sum is σ = 1849071756. Its totient is φ = 528306192.

The previous prime is 1144663439. The next prime is 1144663463. The reversal of 1144663442 is 2443664411.

It can be written as a sum of positive squares in 2 ways, for example, as 956726761 + 187936681 = 30931^2 + 13709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22012733 + ... + 22012784.

Almost surely, 2^1144663442 is an apocalyptic number.

1144663442 is a deficient number, since it is larger than the sum of its proper divisors (704408314).

1144663442 is a wasteful number, since it uses less digits than its factorization.

1144663442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44025532.

The product of its digits is 55296, while the sum is 35.

The square root of 1144663442 is about 33832.8751660275. The cubic root of 1144663442 is about 1046.0664439438.

The spelling of 1144663442 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, four hundred forty-two".