274238389 has 8 divisors (see below), whose sum is σ = 276365592. Its totient is φ = 272117760.

The previous prime is 274238383. The next prime is 274238401. The reversal of 274238389 is 983832472.

It can be written as a sum of positive squares in 4 ways, for example, as 192932100 + 81306289 = 13890^2 + 9017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 274238389 - 2⁵ = 274238357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274238383) 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 7 ways as a sum of consecutive naturals, for example, 109657 + ... + 112129.

It is an arithmetic number, because the mean of its divisors is an integer number (34545699).

Almost surely, 2^274238389 is an apocalyptic number.

It is an amenable number.

274238389 is a deficient number, since it is larger than the sum of its proper divisors (2127203).

274238389 is a wasteful number, since it uses less digits than its factorization.

274238389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287.

The product of its digits is 580608, while the sum is 46.

The square root of 274238389 is about 16560.1445947794. The cubic root of 274238389 is about 649.6948382147.

It can be divided in two parts, 2742383 and 89, that added together give a palindrome (2742472).

The spelling of 274238389 in words is "two hundred seventy-four million, two hundred thirty-eight thousand, three hundred eighty-nine".