138372332 has 24 divisors (see below), whose sum is σ = 276998400. Its totient is φ = 59248080.

The previous prime is 138372331. The next prime is 138372389. The reversal of 138372332 is 233273831.

It is not an unprimeable number, because it can be changed into a prime (138372331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49919 + ... + 52617.

It is an arithmetic number, because the mean of its divisors is an integer number (11541600).

Almost surely, 2^138372332 is an apocalyptic number.

It is an amenable number.

138372332 is an abundant number, since it is smaller than the sum of its proper divisors (138626068).

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

138372332 is a wasteful number, since it uses less digits than its factorization.

138372332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541 (or 4539 counting only the distinct ones).

The product of its digits is 18144, while the sum is 32.

The square root of 138372332 is about 11763.1769518273. The cubic root of 138372332 is about 517.2292617926.

The spelling of 138372332 in words is "one hundred thirty-eight million, three hundred seventy-two thousand, three hundred thirty-two".