138260332 has 12 divisors (see below), whose sum is σ = 276520720. Its totient is φ = 59254416.

The previous prime is 138260327. The next prime is 138260347. The reversal of 138260332 is 233062831.

138260332 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 4937869 = 138260332 / (1 + 3 + 8 + 2 + 6 + 0 + 3 + 3 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 138260332.

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, 2468907 + ... + 2468962.

Almost surely, 2^138260332 is an apocalyptic number.

It is an amenable number.

138260332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

138260332 is a wasteful number, since it uses less digits than its factorization.

138260332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937880 (or 4937878 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 138260332 is about 11758.4153694280. The cubic root of 138260332 is about 517.0896738824.

The spelling of 138260332 in words is "one hundred thirty-eight million, two hundred sixty thousand, three hundred thirty-two".