274342729 has 4 divisors (see below), whose sum is σ = 288781840. Its totient is φ = 259903620.

The previous prime is 274342721. The next prime is 274342751. The reversal of 274342729 is 927243472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 274342729 - 2³ = 274342721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 274342691 and 274342700.

It is not an unprimeable number, because it can be changed into a prime (274342721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7219527 + ... + 7219564.

It is an arithmetic number, because the mean of its divisors is an integer number (72195460).

Almost surely, 2^274342729 is an apocalyptic number.

It is an amenable number.

274342729 is a deficient number, since it is larger than the sum of its proper divisors (14439111).

274342729 is a wasteful number, since it uses less digits than its factorization.

274342729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14439110.

The product of its digits is 169344, while the sum is 40.

The square root of 274342729 is about 16563.2946299944. The cubic root of 274342729 is about 649.7772246428. Note that the first 3 decimals are identical.

The spelling of 274342729 in words is "two hundred seventy-four million, three hundred forty-two thousand, seven hundred twenty-nine".