1339438992 has 40 divisors (see below), whose sum is σ = 3540693024. Its totient is φ = 436095744.

The previous prime is 1339438987. The next prime is 1339439011. The reversal of 1339438992 is 2998349331.

It is an unprimeable number.

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, 322413 + ... + 326540.

Almost surely, 2^1339438992 is an apocalyptic number.

1339438992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1339438992 is an abundant number, since it is smaller than the sum of its proper divisors (2201254032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1339438992 is a wasteful number, since it uses less digits than its factorization.

1339438992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649007 (or 649001 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 51.

The square root of 1339438992 is about 36598.3468479110. The cubic root of 1339438992 is about 1102.3198950966.

The spelling of 1339438992 in words is "one billion, three hundred thirty-nine million, four hundred thirty-eight thousand, nine hundred ninety-two".