275242538 has 8 divisors (see below), whose sum is σ = 427100580. Its totient is φ = 132875680.

The previous prime is 275242507. The next prime is 275242543. The reversal of 275242538 is 835242572.

It can be written as a sum of positive squares in 2 ways, for example, as 252269689 + 22972849 = 15883^2 + 4793^2 .

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

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, 2372723 + ... + 2372838.

Almost surely, 2^275242538 is an apocalyptic number.

275242538 is a deficient number, since it is larger than the sum of its proper divisors (151858042).

275242538 is a wasteful number, since it uses less digits than its factorization.

275242538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745592.

The product of its digits is 134400, while the sum is 38.

The square root of 275242538 is about 16590.4351359450. The cubic root of 275242538 is about 650.4868447337.

The spelling of 275242538 in words is "two hundred seventy-five million, two hundred forty-two thousand, five hundred thirty-eight".