138418822 has 8 divisors (see below), whose sum is σ = 207954072. Its totient is φ = 69100800.

The previous prime is 138418817. The next prime is 138418837. The reversal of 138418822 is 228814831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52704 + ... + 55267.

It is an arithmetic number, because the mean of its divisors is an integer number (25994259).

Almost surely, 2^138418822 is an apocalyptic number.

138418822 is a deficient number, since it is larger than the sum of its proper divisors (69535250).

138418822 is a wasteful number, since it uses less digits than its factorization.

138418822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108614.

The product of its digits is 24576, while the sum is 37.

The square root of 138418822 is about 11765.1528676851. The cubic root of 138418822 is about 517.2871811169.

The spelling of 138418822 in words is "one hundred thirty-eight million, four hundred eighteen thousand, eight hundred twenty-two".