255784704 has 144 divisors (see below), whose sum is σ = 794707200. Its totient is φ = 73006080.

The previous prime is 255784693. The next prime is 255784721. The reversal of 255784704 is 407487552.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262939 + ... + 263909.

It is an arithmetic number, because the mean of its divisors is an integer number (5518800).

Almost surely, 2^255784704 is an apocalyptic number.

255784704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255784704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397353600).

255784704 is an abundant number, since it is smaller than the sum of its proper divisors (538922496).

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

255784704 is an frugal number, since it uses more digits than its factorization.

255784704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The square root of 255784704 is about 15993.2705848429. The cubic root of 255784704 is about 634.7823702932.

The spelling of 255784704 in words is "two hundred fifty-five million, seven hundred eighty-four thousand, seven hundred four".