255984404 has 24 divisors (see below), whose sum is σ = 483588840. Its totient is φ = 117863424.

The previous prime is 255984403. The next prime is 255984497. The reversal of 255984404 is 404489552.

It can be written as a sum of positive squares in 4 ways, for example, as 48400 + 255936004 = 220^2 + 15998^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255984401) 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, 16832 + ... + 28200.

It is an arithmetic number, because the mean of its divisors is an integer number (20149535).

Almost surely, 2^255984404 is an apocalyptic number.

It is an amenable number.

255984404 is a deficient number, since it is larger than the sum of its proper divisors (227604436).

255984404 is a wasteful number, since it uses less digits than its factorization.

255984404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819 (or 11817 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 255984404 is about 15999.5126175768. The cubic root of 255984404 is about 634.9475261990.

The spelling of 255984404 in words is "two hundred fifty-five million, nine hundred eighty-four thousand, four hundred four".