256434300 has 54 divisors (see below), whose sum is σ = 803781888. Its totient is φ = 68382240.

The previous prime is 256434293. The next prime is 256434313. The reversal of 256434300 is 3434652.

256434300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 141564 + ... + 143363.

Almost surely, 2^256434300 is an apocalyptic number.

256434300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256434300 is an abundant number, since it is smaller than the sum of its proper divisors (547347588).

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

256434300 is a wasteful number, since it uses less digits than its factorization.

256434300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284947 (or 284937 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 256434300 is about 16013.5661237589. The cubic root of 256434300 is about 635.3192847389.

Adding to 256434300 its reverse (3434652), we get a palindrome (259868952).

It can be divided in two parts, 2564 and 34300, that added together give a square (36864 = 192²).

The spelling of 256434300 in words is "two hundred fifty-six million, four hundred thirty-four thousand, three hundred".