138269672 has 32 divisors (see below), whose sum is σ = 270266880. Its totient is φ = 66242880.

The previous prime is 138269647. The next prime is 138269683. The reversal of 138269672 is 276962831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22838 + ... + 28250.

It is an arithmetic number, because the mean of its divisors is an integer number (8445840).

Almost surely, 2^138269672 is an apocalyptic number.

It is an amenable number.

138269672 is a deficient number, since it is larger than the sum of its proper divisors (131997208).

138269672 is a wasteful number, since it uses less digits than its factorization.

138269672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553 (or 5549 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 138269672 is about 11758.8125250809. The cubic root of 138269672 is about 517.1013173975.

The spelling of 138269672 in words is "one hundred thirty-eight million, two hundred sixty-nine thousand, six hundred seventy-two".