256854618 has 32 divisors (see below), whose sum is σ = 573998400. Its totient is φ = 85136688.

The previous prime is 256854607. The next prime is 256854659. The reversal of 256854618 is 816458652.

256854618 is a `hidden beast` number, since 25 + 6 + 8 + 5 + 4 + 618 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3621 + ... + 22952.

It is an arithmetic number, because the mean of its divisors is an integer number (17937450).

Almost surely, 2^256854618 is an apocalyptic number.

256854618 is an abundant number, since it is smaller than the sum of its proper divisors (317143782).

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

256854618 is a wasteful number, since it uses less digits than its factorization.

256854618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26763 (or 26757 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 256854618 is about 16026.6845604448. The cubic root of 256854618 is about 635.6662096828. Note that the first 3 decimals are identical.

It can be divided in two parts, 25685 and 4618, that added together give a palindrome (30303).

The spelling of 256854618 in words is "two hundred fifty-six million, eight hundred fifty-four thousand, six hundred eighteen".