274721242 has 4 divisors (see below), whose sum is σ = 412081866. Its totient is φ = 137360620.

The previous prime is 274721219. The next prime is 274721261. The reversal of 274721242 is 242127472.

274721242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 274598041 + 123201 = 16571^2 + 351^2 .

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68680309 + ... + 68680312.

Almost surely, 2^274721242 is an apocalyptic number.

274721242 is a deficient number, since it is larger than the sum of its proper divisors (137360624).

274721242 is a wasteful number, since it uses less digits than its factorization.

274721242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137360623.

The product of its digits is 12544, while the sum is 31.

The square root of 274721242 is about 16574.7169508260. The cubic root of 274721242 is about 650.0759217038.

The spelling of 274721242 in words is "two hundred seventy-four million, seven hundred twenty-one thousand, two hundred forty-two".