256441446 has 24 divisors (see below), whose sum is σ = 558079704. Its totient is φ = 85102560.

The previous prime is 256441441. The next prime is 256441459. The reversal of 256441446 is 644144652.

256441446 is a `hidden beast` number, since 2 + 5 + 644 + 1 + 4 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 256441446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256441441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27295 + ... + 35466.

It is an arithmetic number, because the mean of its divisors is an integer number (23253321).

Almost surely, 2^256441446 is an apocalyptic number.

256441446 is an abundant number, since it is smaller than the sum of its proper divisors (301638258).

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

256441446 is a wasteful number, since it uses less digits than its factorization.

256441446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62996 (or 62993 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 256441446 is about 16013.7892455221. The cubic root of 256441446 is about 635.3251861198.

The spelling of 256441446 in words is "two hundred fifty-six million, four hundred forty-one thousand, four hundred forty-six".