256675782 has 16 divisors (see below), whose sum is σ = 560020032. Its totient is φ = 77780520.

The previous prime is 256675777. The next prime is 256675787. The reversal of 256675782 is 287576652.

It is an interprime number because it is at equal distance from previous prime (256675777) and next prime (256675787).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256675787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1944448 + ... + 1944579.

It is an arithmetic number, because the mean of its divisors is an integer number (35001252).

Almost surely, 2^256675782 is an apocalyptic number.

256675782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256675782 is an abundant number, since it is smaller than the sum of its proper divisors (303344250).

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

256675782 is a wasteful number, since it uses less digits than its factorization.

256675782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889043.

The product of its digits is 1411200, while the sum is 48.

The square root of 256675782 is about 16021.1042690571. The cubic root of 256675782 is about 635.5186470956.

The spelling of 256675782 in words is "two hundred fifty-six million, six hundred seventy-five thousand, seven hundred eighty-two".