255406396 has 24 divisors (see below), whose sum is σ = 527292416. Its totient is φ = 105928560.

The previous prime is 255406391. The next prime is 255406397. The reversal of 255406396 is 693604552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255406391) 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, 146256 + ... + 147991.

Almost surely, 2^255406396 is an apocalyptic number.

It is an amenable number.

255406396 is an abundant number, since it is smaller than the sum of its proper divisors (271886020).

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

255406396 is a wasteful number, since it uses less digits than its factorization.

255406396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294289 (or 294287 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 255406396 is about 15981.4391091666. The cubic root of 255406396 is about 634.4692661683.

The spelling of 255406396 in words is "two hundred fifty-five million, four hundred six thousand, three hundred ninety-six".