256263046 has 16 divisors (see below), whose sum is σ = 416052000. Its totient is φ = 117678528.

The previous prime is 256263043. The next prime is 256263047. The reversal of 256263046 is 640362652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256263043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19591 + ... + 29938.

It is an arithmetic number, because the mean of its divisors is an integer number (26003250).

Almost surely, 2^256263046 is an apocalyptic number.

256263046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

256263046 is a deficient number, since it is larger than the sum of its proper divisors (159788954).

256263046 is a wasteful number, since it uses less digits than its factorization.

256263046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49743.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 256263046 is about 16008.2180769753. The cubic root of 256263046 is about 635.1778252463.

The spelling of 256263046 in words is "two hundred fifty-six million, two hundred sixty-three thousand, forty-six".