1144404623 has 16 divisors (see below), whose sum is σ = 1246291200. Its totient is φ = 1046618496.

The previous prime is 1144404619. The next prime is 1144404643. The reversal of 1144404623 is 3264044411.

It is a cyclic number.

It is not a de Polignac number, because 1144404623 - 2² = 1144404619 is a prime.

It is a super-2 number, since 2×1144404623² = 2619323882287544258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144404643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141536 + ... + 149402.

It is an arithmetic number, because the mean of its divisors is an integer number (77893200).

Almost surely, 2^1144404623 is an apocalyptic number.

1144404623 is a deficient number, since it is larger than the sum of its proper divisors (101886577).

1144404623 is a wasteful number, since it uses less digits than its factorization.

1144404623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1144404623 is about 33829.0499866609. The cubic root of 1144404623 is about 1045.9875962321.

The spelling of 1144404623 in words is "one billion, one hundred forty-four million, four hundred four thousand, six hundred twenty-three".