380289138 has 8 divisors (see below), whose sum is σ = 760578288. Its totient is φ = 126763044.

The previous prime is 380289109. The next prime is 380289149. The reversal of 380289138 is 831982083.

It is a sphenic number, since it is the product of 3 distinct primes.

380289138 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 380289138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31690756 + ... + 31690767.

It is an arithmetic number, because the mean of its divisors is an integer number (95072286).

Almost surely, 2^380289138 is an apocalyptic number.

380289138 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.

380289138 is a wasteful number, since it uses less digits than its factorization.

380289138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63381528.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 380289138 is about 19501.0035126401. The cubic root of 380289138 is about 724.4993058198.

The spelling of 380289138 in words is "three hundred eighty million, two hundred eighty-nine thousand, one hundred thirty-eight".