138626416 has 20 divisors (see below), whose sum is σ = 272270272. Its totient is φ = 68363136.

The previous prime is 138626401. The next prime is 138626419. The reversal of 138626416 is 614626831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138626419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58176 + ... + 60511.

Almost surely, 2^138626416 is an apocalyptic number.

138626416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138626416 is a deficient number, since it is larger than the sum of its proper divisors (133643856).

138626416 is a wasteful number, since it uses less digits than its factorization.

138626416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118768 (or 118762 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 138626416 is about 11773.9719721086. The cubic root of 138626416 is about 517.5456528917.

The spelling of 138626416 in words is "one hundred thirty-eight million, six hundred twenty-six thousand, four hundred sixteen".