1383721332 has 48 divisors (see below), whose sum is σ = 3808960512. Its totient is φ = 382595040.

The previous prime is 1383721321. The next prime is 1383721333. The reversal of 1383721332 is 2331273831.

It is a junction number, because it is equal to n+sod(n) for n = 1383721293 and 1383721302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383721333) 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 15 ways as a sum of consecutive naturals, for example, 263088 + ... + 268295.

It is an arithmetic number, because the mean of its divisors is an integer number (79353344).

Almost surely, 2^1383721332 is an apocalyptic number.

1383721332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1383721332 is an abundant number, since it is smaller than the sum of its proper divisors (2425239180).

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

1383721332 is a wasteful number, since it uses less digits than its factorization.

1383721332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531428 (or 531426 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 1383721332 is about 37198.4049658046. The cubic root of 1383721332 is about 1114.3361306483.

The spelling of 1383721332 in words is "one billion, three hundred eighty-three million, seven hundred twenty-one thousand, three hundred thirty-two".