256887482 has 8 divisors (see below), whose sum is σ = 387786036. Its totient is φ = 127625472.

The previous prime is 256887479. The next prime is 256887487. The reversal of 256887482 is 284788652.

It is a happy number.

256887482 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 243703321 + 13184161 = 15611^2 + 3631^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 256887482.

It is not an unprimeable number, because it can be changed into a prime (256887487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408743 + ... + 409370.

Almost surely, 2^256887482 is an apocalyptic number.

256887482 is a deficient number, since it is larger than the sum of its proper divisors (130898554).

256887482 is a wasteful number, since it uses less digits than its factorization.

256887482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818272.

The product of its digits is 1720320, while the sum is 50.

The square root of 256887482 is about 16027.7098176876. The cubic root of 256887482 is about 635.6933192381.

The spelling of 256887482 in words is "two hundred fifty-six million, eight hundred eighty-seven thousand, four hundred eighty-two".