275788642 has 8 divisors (see below), whose sum is σ = 416074716. Its totient is φ = 137097072.

The previous prime is 275788619. The next prime is 275788651. The reversal of 275788642 is 246887572.

It can be written as a sum of positive squares in 2 ways, for example, as 269583561 + 6205081 = 16419^2 + 2491^2 .

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

It is an unprimeable number.

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, 398193 + ... + 398884.

Almost surely, 2^275788642 is an apocalyptic number.

275788642 is a deficient number, since it is larger than the sum of its proper divisors (140286074).

275788642 is a wasteful number, since it uses less digits than its factorization.

275788642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797252.

The product of its digits is 1505280, while the sum is 49.

The square root of 275788642 is about 16606.8853792636. The cubic root of 275788642 is about 650.9167671232.

The spelling of 275788642 in words is "two hundred seventy-five million, seven hundred eighty-eight thousand, six hundred forty-two".