138234366 has 12 divisors (see below), whose sum is σ = 299507832. Its totient is φ = 46078116.

The previous prime is 138234359. The next prime is 138234377. The reversal of 138234366 is 663432831.

It is a self number, because there is not a number n which added to its sum of digits gives 138234366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3839826 + ... + 3839861.

It is an arithmetic number, because the mean of its divisors is an integer number (24958986).

Almost surely, 2^138234366 is an apocalyptic number.

138234366 is an abundant number, since it is smaller than the sum of its proper divisors (161273466).

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

138234366 is a wasteful number, since it uses less digits than its factorization.

138234366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679695 (or 7679692 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 138234366 is about 11757.3111722026. The cubic root of 138234366 is about 517.0573011575.

The spelling of 138234366 in words is "one hundred thirty-eight million, two hundred thirty-four thousand, three hundred sixty-six".