1439312979 has 16 divisors (see below), whose sum is σ = 2085001632. Its totient is φ = 877890048.

The previous prime is 1439312977. The next prime is 1439312993. The reversal of 1439312979 is 9792139341.

It is not a de Polignac number, because 1439312979 - 2¹ = 1439312977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1439312977) 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, 158892 + ... + 167705.

It is an arithmetic number, because the mean of its divisors is an integer number (130312602).

Almost surely, 2^1439312979 is an apocalyptic number.

1439312979 is a deficient number, since it is larger than the sum of its proper divisors (645688653).

1439312979 is a wasteful number, since it uses less digits than its factorization.

1439312979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326726.

The product of its digits is 367416, while the sum is 48.

The square root of 1439312979 is about 37938.2785455534. The cubic root of 1439312979 is about 1129.0636195580.

It can be divided in two parts, 14393 and 12979, that added together give a palindrome (27372).

The spelling of 1439312979 in words is "one billion, four hundred thirty-nine million, three hundred twelve thousand, nine hundred seventy-nine".