256330700 has 18 divisors (see below), whose sum is σ = 556237836. Its totient is φ = 102532240.

The previous prime is 256330693. The next prime is 256330717. The reversal of 256330700 is 7033652.

It is a self number, because there is not a number n which added to its sum of digits gives 256330700.

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, 1281554 + ... + 1281753.

It is an arithmetic number, because the mean of its divisors is an integer number (30902102).

Almost surely, 2^256330700 is an apocalyptic number.

256330700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256330700 is an abundant number, since it is smaller than the sum of its proper divisors (299907136).

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

256330700 is a wasteful number, since it uses less digits than its factorization.

256330700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563321 (or 2563314 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 256330700 is about 16010.3310396756. The cubic root of 256330700 is about 635.2337164360.

The spelling of 256330700 in words is "two hundred fifty-six million, three hundred thirty thousand, seven hundred".