256239082 has 16 divisors (see below), whose sum is σ = 421435872. Its totient is φ = 115879120.

The previous prime is 256239077. The next prime is 256239083. The reversal of 256239082 is 280932652.

It is not an unprimeable number, because it can be changed into a prime (256239083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25228 + ... + 33895.

It is an arithmetic number, because the mean of its divisors is an integer number (26339742).

Almost surely, 2^256239082 is an apocalyptic number.

256239082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256239082 is a deficient number, since it is larger than the sum of its proper divisors (165196790).

256239082 is a wasteful number, since it uses less digits than its factorization.

256239082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59333.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 256239082 is about 16007.4695689231. The cubic root of 256239082 is about 635.1580254402.

The spelling of 256239082 in words is "two hundred fifty-six million, two hundred thirty-nine thousand, eighty-two".