1144664339 has 16 divisors (see below), whose sum is σ = 1418289600. Its totient is φ = 899579520.

The previous prime is 1144664327. The next prime is 1144664351. The reversal of 1144664339 is 9334664411.

It is an interprime number because it is at equal distance from previous prime (1144664327) and next prime (1144664351).

It is a de Polignac number, because none of the positive numbers 2^k-1144664339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144664296 and 1144664305.

It is not an unprimeable number, because it can be changed into a prime (1144664399) 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, 28652 + ... + 55769.

It is an arithmetic number, because the mean of its divisors is an integer number (88643100).

Almost surely, 2^1144664339 is an apocalyptic number.

1144664339 is a deficient number, since it is larger than the sum of its proper divisors (273625261).

1144664339 is a wasteful number, since it uses less digits than its factorization.

1144664339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84590.

The product of its digits is 186624, while the sum is 41.

The square root of 1144664339 is about 33832.8884223620. Note that the first 3 decimals coincide. The cubic root of 1144664339 is about 1046.0667171890.

The spelling of 1144664339 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, three hundred thirty-nine".