275344381 has 16 divisors (see below), whose sum is σ = 304429104. Its totient is φ = 247463424.

The previous prime is 275344369. The next prime is 275344411. The reversal of 275344381 is 183443572.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 30140100 + 245204281 = 5490^2 + 15659^2 .

It is not a de Polignac number, because 275344381 - 2⁷ = 275344253 is a prime.

It is a super-2 number, since 2×275344381² = 151629056296546322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275344381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275344331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 92935 + ... + 95851.

It is an arithmetic number, because the mean of its divisors is an integer number (19026819).

Almost surely, 2^275344381 is an apocalyptic number.

It is an amenable number.

275344381 is a deficient number, since it is larger than the sum of its proper divisors (29084723).

275344381 is a wasteful number, since it uses less digits than its factorization.

275344381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120.

The product of its digits is 80640, while the sum is 37.

The square root of 275344381 is about 16593.5041808534. The cubic root of 275344381 is about 650.5670641202.

The spelling of 275344381 in words is "two hundred seventy-five million, three hundred forty-four thousand, three hundred eighty-one".