1144436623 has 8 divisors (see below), whose sum is σ = 1257459840. Its totient is φ = 1032910680.

The previous prime is 1144436593. The next prime is 1144436639. The reversal of 1144436623 is 3266344411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144436623 - 2⁵ = 1144436591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144436653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372715 + ... + 375772.

It is an arithmetic number, because the mean of its divisors is an integer number (157182480).

Almost surely, 2^1144436623 is an apocalyptic number.

1144436623 is a deficient number, since it is larger than the sum of its proper divisors (113023217).

1144436623 is a wasteful number, since it uses less digits than its factorization.

1144436623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748637.

The product of its digits is 41472, while the sum is 34.

The square root of 1144436623 is about 33829.5229496368. The cubic root of 1144436623 is about 1045.9973454911.

The spelling of 1144436623 in words is "one billion, one hundred forty-four million, four hundred thirty-six thousand, six hundred twenty-three".