256004342 has 16 divisors (see below), whose sum is σ = 419165712. Its totient is φ = 116296320.

The previous prime is 256004339. The next prime is 256004407. The reversal of 256004342 is 243400652.

256004342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60818 + ... + 64890.

It is an arithmetic number, because the mean of its divisors is an integer number (26197857).

Almost surely, 2^256004342 is an apocalyptic number.

256004342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256004342 is a deficient number, since it is larger than the sum of its proper divisors (163161370).

256004342 is a wasteful number, since it uses less digits than its factorization.

256004342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 256004342 is about 16000.1356869247. The cubic root of 256004342 is about 634.9640106083.

Adding to 256004342 its reverse (243400652), we get a palindrome (499404994).

The spelling of 256004342 in words is "two hundred fifty-six million, four thousand, three hundred forty-two".