275238870 has 32 divisors (see below), whose sum is σ = 663331680. Its totient is φ = 73090560.

The previous prime is 275238851. The next prime is 275238871. The reversal of 275238870 is 78832572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275238871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11805 + ... + 26264.

It is an arithmetic number, because the mean of its divisors is an integer number (20729115).

Almost surely, 2^275238870 is an apocalyptic number.

275238870 is an abundant number, since it is smaller than the sum of its proper divisors (388092810).

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

275238870 is a wasteful number, since it uses less digits than its factorization.

275238870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38320.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 275238870 is about 16590.3245899530. The cubic root of 275238870 is about 650.4839551653.

The spelling of 275238870 in words is "two hundred seventy-five million, two hundred thirty-eight thousand, eight hundred seventy".