138232422 has 12 divisors (see below), whose sum is σ = 299503620. Its totient is φ = 46077468.

The previous prime is 138232421. The next prime is 138232439. The reversal of 138232422 is 224232831.

138232422 is a `hidden beast` number, since 1 + 3 + 8 + 232 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138232421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3839772 + ... + 3839807.

It is an arithmetic number, because the mean of its divisors is an integer number (24958635).

Almost surely, 2^138232422 is an apocalyptic number.

138232422 is an abundant number, since it is smaller than the sum of its proper divisors (161271198).

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

138232422 is a wasteful number, since it uses less digits than its factorization.

138232422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679587 (or 7679584 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 138232422 is about 11757.2284999484. The cubic root of 138232422 is about 517.0548773412.

The spelling of 138232422 in words is "one hundred thirty-eight million, two hundred thirty-two thousand, four hundred twenty-two".