1383839982 has 48 divisors (see below), whose sum is σ = 3437697120. Its totient is φ = 394108416.

The previous prime is 1383839981. The next prime is 1383840023. The reversal of 1383839982 is 2899383831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383839981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21894 + ... + 56982.

It is an arithmetic number, because the mean of its divisors is an integer number (71618690).

Almost surely, 2^1383839982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383839982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718848560).

1383839982 is an abundant number, since it is smaller than the sum of its proper divisors (2053857138).

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

1383839982 is a wasteful number, since it uses less digits than its factorization.

1383839982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35417 (or 35414 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 1383839982 is about 37199.9997580645. Note that the first 3 decimals coincide. The cubic root of 1383839982 is about 1114.3679800773.

The spelling of 1383839982 in words is "one billion, three hundred eighty-three million, eight hundred thirty-nine thousand, nine hundred eighty-two".