138832332 has 12 divisors (see below), whose sum is σ = 323942136. Its totient is φ = 46277440.

The previous prime is 138832321. The next prime is 138832339. The reversal of 138832332 is 233238831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 138832293 and 138832302.

It is not an unprimeable number, because it can be changed into a prime (138832339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5784669 + ... + 5784692.

It is an arithmetic number, because the mean of its divisors is an integer number (26995178).

Almost surely, 2^138832332 is an apocalyptic number.

138832332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138832332 is an abundant number, since it is smaller than the sum of its proper divisors (185109804).

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

138832332 is a wasteful number, since it uses less digits than its factorization.

138832332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569368 (or 11569366 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 138832332 is about 11782.7132698712. The cubic root of 138832332 is about 517.8017806206.

The spelling of 138832332 in words is "one hundred thirty-eight million, eight hundred thirty-two thousand, three hundred thirty-two".