256103800 has 24 divisors (see below), whose sum is σ = 595441800. Its totient is φ = 102441440.

The previous prime is 256103777. The next prime is 256103857. The reversal of 256103800 is 8301652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 640060 + ... + 640459.

It is an arithmetic number, because the mean of its divisors is an integer number (24810075).

Almost surely, 2^256103800 is an apocalyptic number.

256103800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256103800 is an abundant number, since it is smaller than the sum of its proper divisors (339338000).

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

256103800 is a wasteful number, since it uses less digits than its factorization.

256103800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280535 (or 1280526 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 256103800 is about 16003.2434212568. The cubic root of 256103800 is about 635.0462280603.

The spelling of 256103800 in words is "two hundred fifty-six million, one hundred three thousand, eight hundred".