274738 has 4 divisors (see below), whose sum is σ = 412110. Its totient is φ = 137368.

The previous prime is 274723. The next prime is 274739. The reversal of 274738 is 837472.

274738 is nontrivially palindromic in base 13.

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

It can be written as a sum of positive squares in only one way, i.e., 257049 + 17689 = 507^2 + 133^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (274739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68683 + ... + 68686.

2²⁷⁴⁷³⁸ is an apocalyptic number.

274738 is a deficient number, since it is larger than the sum of its proper divisors (137372).

274738 is a wasteful number, since it uses less digits than its factorization.

274738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137371.

The product of its digits is 9408, while the sum is 31.

The square root of 274738 is about 524.1545573588. The cubic root of 274738 is about 65.0089139649.

The spelling of 274738 in words is "two hundred seventy-four thousand, seven hundred thirty-eight".