256673446 has 32 divisors (see below), whose sum is σ = 414892800. Its totient is φ = 118665216.

The previous prime is 256673441. The next prime is 256673453. The reversal of 256673446 is 644376652.

256673446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256673441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735280 + ... + 735628.

It is an arithmetic number, because the mean of its divisors is an integer number (12965400).

Almost surely, 2^256673446 is an apocalyptic number.

256673446 is a deficient number, since it is larger than the sum of its proper divisors (158219354).

256673446 is a wasteful number, since it uses less digits than its factorization.

256673446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its digits is 725760, while the sum is 43.

The square root of 256673446 is about 16021.0313650526. The cubic root of 256673446 is about 635.5167191432.

The spelling of 256673446 in words is "two hundred fifty-six million, six hundred seventy-three thousand, four hundred forty-six".