256532304 has 80 divisors (see below), whose sum is σ = 760522752. Its totient is φ = 72991104.

The previous prime is 256532303. The next prime is 256532321. The reversal of 256532304 is 403235652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256532303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86917 + ... + 89819.

Almost surely, 2^256532304 is an apocalyptic number.

256532304 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 256532304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380261376).

256532304 is an abundant number, since it is smaller than the sum of its proper divisors (503990448).

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

256532304 is a wasteful number, since it uses less digits than its factorization.

256532304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3178 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 256532304 is about 16016.6258618974. The cubic root of 256532304 is about 635.4002098217.

Adding to 256532304 its reverse (403235652), we get a palindrome (659767956).

The spelling of 256532304 in words is "two hundred fifty-six million, five hundred thirty-two thousand, three hundred four".