138059922 has 128 divisors (see below), whose sum is σ = 375717888. Its totient is φ = 32659200.

The previous prime is 138059891. The next prime is 138059927. The reversal of 138059922 is 229950831.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (138059927) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 762672 + ... + 762852.

It is an arithmetic number, because the mean of its divisors is an integer number (2935296).

Almost surely, 2^138059922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138059922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187858944).

138059922 is an abundant number, since it is smaller than the sum of its proper divisors (237657966).

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

138059922 is a wasteful number, since it uses less digits than its factorization.

138059922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 138059922 is about 11749.8902973602. The cubic root of 138059922 is about 516.8397105190.

The spelling of 138059922 in words is "one hundred thirty-eight million, fifty-nine thousand, nine hundred twenty-two".