256943600 has 30 divisors (see below), whose sum is σ = 617307960. Its totient is φ = 102777280.

The previous prime is 256943587. The next prime is 256943611. The reversal of 256943600 is 6349652.

256943600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320780 + ... + 321579.

It is an arithmetic number, because the mean of its divisors is an integer number (20576932).

Almost surely, 2^256943600 is an apocalyptic number.

256943600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256943600 is an abundant number, since it is smaller than the sum of its proper divisors (360364360).

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

256943600 is a wasteful number, since it uses less digits than its factorization.

256943600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642377 (or 642366 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 256943600 is about 16029.4603776921. The cubic root of 256943600 is about 635.7396057030.

The spelling of 256943600 in words is "two hundred fifty-six million, nine hundred forty-three thousand, six hundred".