256674481 has 16 divisors (see below), whose sum is σ = 297579520. Its totient is φ = 216853200.

The previous prime is 256674469. The next prime is 256674499. The reversal of 256674481 is 184476652.

256674481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 256674481 - 2⁹ = 256673969 is a prime.

It is a super-2 number, since 2×256674481² = 131763578393238722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256674461) 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, 146050 + ... + 147796.

It is an arithmetic number, because the mean of its divisors is an integer number (18598720).

Almost surely, 2^256674481 is an apocalyptic number.

It is an amenable number.

256674481 is a deficient number, since it is larger than the sum of its proper divisors (40905039).

256674481 is a wasteful number, since it uses less digits than its factorization.

256674481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044.

The product of its digits is 322560, while the sum is 43.

The square root of 256674481 is about 16021.0636663113. The cubic root of 256674481 is about 635.5175733530.

The spelling of 256674481 in words is "two hundred fifty-six million, six hundred seventy-four thousand, four hundred eighty-one".