256484841 has 8 divisors (see below), whose sum is σ = 343752480. Its totient is φ = 170103552.

The previous prime is 256484827. The next prime is 256484849. The reversal of 256484841 is 148484652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256484841 - 2¹⁵ = 256452073 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 256484793 and 256484802.

It is not an unprimeable number, because it can be changed into a prime (256484849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220911 + ... + 222068.

It is an arithmetic number, because the mean of its divisors is an integer number (42969060).

Almost surely, 2^256484841 is an apocalyptic number.

It is an amenable number.

256484841 is a deficient number, since it is larger than the sum of its proper divisors (87267639).

256484841 is a wasteful number, since it uses less digits than its factorization.

256484841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443175.

The product of its digits is 245760, while the sum is 42.

The square root of 256484841 is about 16015.1441142439. The cubic root of 256484841 is about 635.3610206568.

The spelling of 256484841 in words is "two hundred fifty-six million, four hundred eighty-four thousand, eight hundred forty-one".