1329439331 has 8 divisors (see below), whose sum is σ = 1457661744. Its totient is φ = 1202444320.

The previous prime is 1329439277. The next prime is 1329439379. The reversal of 1329439331 is 1339349231.

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

It is a de Polignac number, because none of the positive numbers 2^k-1329439331 is a prime.

It is a super-2 number, since 2×1329439331² = 3534817869619455122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1329439931) 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, 304580 + ... + 308913.

It is an arithmetic number, because the mean of its divisors is an integer number (182207718).

Almost surely, 2^1329439331 is an apocalyptic number.

1329439331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1329439331 is a deficient number, since it is larger than the sum of its proper divisors (128222413).

1329439331 is a wasteful number, since it uses less digits than its factorization.

1329439331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613701.

The product of its digits is 52488, while the sum is 38.

The square root of 1329439331 is about 36461.4773562455. The cubic root of 1329439331 is about 1099.5698954857.

It can be divided in two parts, 13294 and 39331, that added together give a palindrome (52625).

The spelling of 1329439331 in words is "one billion, three hundred twenty-nine million, four hundred thirty-nine thousand, three hundred thirty-one".