138384748 has 12 divisors (see below), whose sum is σ = 245788312. Its totient is φ = 68159520.

The previous prime is 138384739. The next prime is 138384761. The reversal of 138384748 is 847483831.

It is a junction number, because it is equal to n+sod(n) for n = 138384698 and 138384707.

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, 257913 + ... + 258448.

Almost surely, 2^138384748 is an apocalyptic number.

It is an amenable number.

138384748 is a deficient number, since it is larger than the sum of its proper divisors (107403564).

138384748 is a wasteful number, since it uses less digits than its factorization.

138384748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516432 (or 516430 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 138384748 is about 11763.7046885749. The cubic root of 138384748 is about 517.2447314711.

The spelling of 138384748 in words is "one hundred thirty-eight million, three hundred eighty-four thousand, seven hundred forty-eight".