138384092 has 24 divisors (see below), whose sum is σ = 301929600. Its totient is φ = 53915760.

The previous prime is 138384079. The next prime is 138384133. The reversal of 138384092 is 290483831.

It is a congruent number.

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, 224342 + ... + 224957.

It is an arithmetic number, because the mean of its divisors is an integer number (12580400).

Almost surely, 2^138384092 is an apocalyptic number.

It is an amenable number.

138384092 is an abundant number, since it is smaller than the sum of its proper divisors (163545508).

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

138384092 is a wasteful number, since it uses less digits than its factorization.

138384092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449321 (or 449319 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 138384092 is about 11763.6768061691. The cubic root of 138384092 is about 517.2439141530.

The spelling of 138384092 in words is "one hundred thirty-eight million, three hundred eighty-four thousand, ninety-two".