275313638 has 4 divisors (see below), whose sum is σ = 412970460. Its totient is φ = 137656818.

The previous prime is 275313601. The next prime is 275313659. The reversal of 275313638 is 836313572.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68828408 + ... + 68828411.

It is an arithmetic number, because the mean of its divisors is an integer number (103242615).

Almost surely, 2^275313638 is an apocalyptic number.

275313638 is a deficient number, since it is larger than the sum of its proper divisors (137656822).

275313638 is a wasteful number, since it uses less digits than its factorization.

275313638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137656821.

The product of its digits is 90720, while the sum is 38.

The square root of 275313638 is about 16592.5777985218. The cubic root of 275313638 is about 650.5428506514.

The spelling of 275313638 in words is "two hundred seventy-five million, three hundred thirteen thousand, six hundred thirty-eight".