255424344 has 128 divisors (see below), whose sum is σ = 763776000. Its totient is φ = 69640704.

The previous prime is 255424327. The next prime is 255424349. The reversal of 255424344 is 443424552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255424349) 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, 501562 + ... + 502070.

It is an arithmetic number, because the mean of its divisors is an integer number (5967000).

Almost surely, 2^255424344 is an apocalyptic number.

255424344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255424344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381888000).

255424344 is an abundant number, since it is smaller than the sum of its proper divisors (508351656).

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

255424344 is a wasteful number, since it uses less digits than its factorization.

255424344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 653 counting only the distinct ones).

The product of its digits is 76800, while the sum is 33.

The square root of 255424344 is about 15982.0006257039. Note that the first 3 decimals coincide. The cubic root of 255424344 is about 634.4841276960.

Adding to 255424344 its reverse (443424552), we get a palindrome (698848896).

The spelling of 255424344 in words is "two hundred fifty-five million, four hundred twenty-four thousand, three hundred forty-four".