275328138 has 8 divisors (see below), whose sum is σ = 550656288. Its totient is φ = 91776044.

The previous prime is 275328133. The next prime is 275328139. The reversal of 275328138 is 831823572.

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

275328138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 275328096 and 275328105.

It is not an unprimeable number, because it can be changed into a prime (275328133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22944006 + ... + 22944017.

It is an arithmetic number, because the mean of its divisors is an integer number (68832036).

Almost surely, 2^275328138 is an apocalyptic number.

275328138 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.

275328138 is a wasteful number, since it uses less digits than its factorization.

275328138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45888028.

The product of its digits is 80640, while the sum is 39.

The square root of 275328138 is about 16593.0147351227. The cubic root of 275328138 is about 650.5542712090.

The spelling of 275328138 in words is "two hundred seventy-five million, three hundred twenty-eight thousand, one hundred thirty-eight".