256483574 has 4 divisors (see below), whose sum is σ = 384725364. Its totient is φ = 128241786.

The previous prime is 256483547. The next prime is 256483609. The reversal of 256483574 is 475384652.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64120892 + ... + 64120895.

It is an arithmetic number, because the mean of its divisors is an integer number (96181341).

Almost surely, 2^256483574 is an apocalyptic number.

256483574 is a deficient number, since it is larger than the sum of its proper divisors (128241790).

256483574 is a wasteful number, since it uses less digits than its factorization.

256483574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128241789.

The product of its digits is 806400, while the sum is 44.

The square root of 256483574 is about 16015.1045578853. The cubic root of 256483574 is about 635.3599744563.

The spelling of 256483574 in words is "two hundred fifty-six million, four hundred eighty-three thousand, five hundred seventy-four".