274384489 has 4 divisors (see below), whose sum is σ = 281800324. Its totient is φ = 266968656.

The previous prime is 274384483. The next prime is 274384493. The reversal of 274384489 is 984483472.

It is a happy number.

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 211848025 + 62536464 = 14555^2 + 7908^2 .

It is a cyclic number.

It is not a de Polignac number, because 274384489 - 2⁷ = 274384361 is a prime.

It is a super-2 number, since 2×274384489² = 150573695607582242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274384483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3707862 + ... + 3707935.

It is an arithmetic number, because the mean of its divisors is an integer number (70450081).

Almost surely, 2^274384489 is an apocalyptic number.

It is an amenable number.

274384489 is a deficient number, since it is larger than the sum of its proper divisors (7415835).

274384489 is an equidigital number, since it uses as much as digits as its factorization.

274384489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415834.

The product of its digits is 1548288, while the sum is 49.

The square root of 274384489 is about 16564.5552007894. Note that the first 3 decimals coincide. The cubic root of 274384489 is about 649.8101923111.

The spelling of 274384489 in words is "two hundred seventy-four million, three hundred eighty-four thousand, four hundred eighty-nine".