1144324431 has 24 divisors (see below), whose sum is σ = 1697048496. Its totient is φ = 742734720.

The previous prime is 1144324429. The next prime is 1144324459. The reversal of 1144324431 is 1344234411.

It is not a de Polignac number, because 1144324431 - 2¹ = 1144324429 is a prime.

It is a super-2 number, since 2×1144324431² = 2618956806766947522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1144324395 and 1144324404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144324481) 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, 53331 + ... + 71643.

It is an arithmetic number, because the mean of its divisors is an integer number (70710354).

Almost surely, 2^1144324431 is an apocalyptic number.

1144324431 is a deficient number, since it is larger than the sum of its proper divisors (552724065).

1144324431 is a wasteful number, since it uses less digits than its factorization.

1144324431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18503 (or 18500 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1144324431 is about 33827.8647123935. The cubic root of 1144324431 is about 1045.9631637907.

Adding to 1144324431 its reverse (1344234411), we get a palindrome (2488558842).

The spelling of 1144324431 in words is "one billion, one hundred forty-four million, three hundred twenty-four thousand, four hundred thirty-one".