274447345 has 4 divisors (see below), whose sum is σ = 329336820. Its totient is φ = 219557872.

The previous prime is 274447331. The next prime is 274447379. The reversal of 274447345 is 543744472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 158583649 + 115863696 = 12593^2 + 10764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274447345 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274447298 and 274447307.

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 in 3 ways as a sum of consecutive naturals, for example, 27444730 + ... + 27444739.

It is an arithmetic number, because the mean of its divisors is an integer number (82334205).

Almost surely, 2^274447345 is an apocalyptic number.

It is an amenable number.

274447345 is a deficient number, since it is larger than the sum of its proper divisors (54889475).

274447345 is an equidigital number, since it uses as much as digits as its factorization.

274447345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54889474.

The product of its digits is 376320, while the sum is 40.

The square root of 274447345 is about 16566.4523963340. The cubic root of 274447345 is about 649.8598080299.

The spelling of 274447345 in words is "two hundred seventy-four million, four hundred forty-seven thousand, three hundred forty-five".