274668638 has 8 divisors (see below), whose sum is σ = 413818632. Its totient is φ = 136729096.

The previous prime is 274668623. The next prime is 274668661. The reversal of 274668638 is 836866472.

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

It is a congruent number.

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, 302045 + ... + 302952.

It is an arithmetic number, because the mean of its divisors is an integer number (51727329).

Almost surely, 2^274668638 is an apocalyptic number.

274668638 is a deficient number, since it is larger than the sum of its proper divisors (139149994).

274668638 is a wasteful number, since it uses less digits than its factorization.

274668638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605226.

The product of its digits is 2322432, while the sum is 50.

The square root of 274668638 is about 16573.1300000935. The cubic root of 274668638 is about 650.0344265790.

The spelling of 274668638 in words is "two hundred seventy-four million, six hundred sixty-eight thousand, six hundred thirty-eight".