255387834 has 24 divisors (see below), whose sum is σ = 595905492. Its totient is φ = 78580800.

The previous prime is 255387817. The next prime is 255387841. The reversal of 255387834 is 438783552.

It can be written as a sum of positive squares in 2 ways, for example, as 252714609 + 2673225 = 15897^2 + 1635^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255387834.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545467 + ... + 545934.

Almost surely, 2^255387834 is an apocalyptic number.

255387834 is an abundant number, since it is smaller than the sum of its proper divisors (340517658).

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

255387834 is a wasteful number, since it uses less digits than its factorization.

255387834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091422 (or 1091419 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 255387834 is about 15980.8583624285. The cubic root of 255387834 is about 634.4538954963.

The spelling of 255387834 in words is "two hundred fifty-five million, three hundred eighty-seven thousand, eight hundred thirty-four".