138882632 has 32 divisors (see below), whose sum is σ = 301382400. Its totient is φ = 58765824.

The previous prime is 138882629. The next prime is 138882641. The reversal of 138882632 is 236288831.

It is a self number, because there is not a number n which added to its sum of digits gives 138882632.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11273 + ... + 20120.

It is an arithmetic number, because the mean of its divisors is an integer number (9418200).

Almost surely, 2^138882632 is an apocalyptic number.

It is an amenable number.

138882632 is an abundant number, since it is smaller than the sum of its proper divisors (162499768).

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

138882632 is a wasteful number, since it uses less digits than its factorization.

138882632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31485 (or 31481 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 138882632 is about 11784.8475594723. The cubic root of 138882632 is about 517.8643075654.

The spelling of 138882632 in words is "one hundred thirty-eight million, eight hundred eighty-two thousand, six hundred thirty-two".