255438836 has 12 divisors (see below), whose sum is σ = 447265728. Its totient is φ = 127648632.

The previous prime is 255438809. The next prime is 255438847. The reversal of 255438836 is 638834552.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9116 + ... + 24371.

It is an arithmetic number, because the mean of its divisors is an integer number (37272144).

Almost surely, 2^255438836 is an apocalyptic number.

It is an amenable number.

255438836 is a deficient number, since it is larger than the sum of its proper divisors (191826892).

255438836 is a wasteful number, since it uses less digits than its factorization.

255438836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35398 (or 35396 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The square root of 255438836 is about 15982.4540043136. The cubic root of 255438836 is about 634.4961270352.

The spelling of 255438836 in words is "two hundred fifty-five million, four hundred thirty-eight thousand, eight hundred thirty-six".