275242422 has 64 divisors (see below), whose sum is σ = 700922880. Its totient is φ = 70084224.

The previous prime is 275242421. The next prime is 275242423. The reversal of 275242422 is 224242572.

It is an interprime number because it is at equal distance from previous prime (275242421) and next prime (275242423).

It is a self number, because there is not a number n which added to its sum of digits gives 275242422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275242421) 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 31 ways as a sum of consecutive naturals, for example, 7143 + ... + 24525.

It is an arithmetic number, because the mean of its divisors is an integer number (10951920).

Almost surely, 2^275242422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275242422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350461440).

275242422 is an abundant number, since it is smaller than the sum of its proper divisors (425680458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275242422 is a wasteful number, since it uses less digits than its factorization.

275242422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17437.

The product of its digits is 17920, while the sum is 30.

The square root of 275242422 is about 16590.4316399544. The cubic root of 275242422 is about 650.4867533518.

Adding to 275242422 its reverse (224242572), we get a palindrome (499484994).

The spelling of 275242422 in words is "two hundred seventy-five million, two hundred forty-two thousand, four hundred twenty-two".