255398844 has 24 divisors (see below), whose sum is σ = 609790720. Its totient is φ = 83152944.

The previous prime is 255398821. The next prime is 255398849. The reversal of 255398844 is 448893552.

It is a junction number, because it is equal to n+sod(n) for n = 255398793 and 255398802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255398849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246964 + ... + 247995.

Almost surely, 2^255398844 is an apocalyptic number.

It is an amenable number.

255398844 is an abundant number, since it is smaller than the sum of its proper divisors (354391876).

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

255398844 is a wasteful number, since it uses less digits than its factorization.

255398844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495009 (or 495007 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 255398844 is about 15981.2028333289. The cubic root of 255398844 is about 634.4630126586.

The spelling of 255398844 in words is "two hundred fifty-five million, three hundred ninety-eight thousand, eight hundred forty-four".