256340034 has 12 divisors (see below), whose sum is σ = 555403446. Its totient is φ = 85446672.

The previous prime is 256340017. The next prime is 256340101. The reversal of 256340034 is 430043652.

256340034 is a `hidden beast` number, since 25 + 634 + 0 + 0 + 3 + 4 = 666.

256340034 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 202977009 + 53363025 = 14247^2 + 7305^2 .

It is a super-2 number, since 2×256340034² = 131420426062242312, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 7120539 + ... + 7120574.

Almost surely, 2^256340034 is an apocalyptic number.

256340034 is an abundant number, since it is smaller than the sum of its proper divisors (299063412).

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

256340034 is a wasteful number, since it uses less digits than its factorization.

256340034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14241121 (or 14241118 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 256340034 is about 16010.6225363038. The cubic root of 256340034 is about 635.2414267877.

Adding to 256340034 its reverse (430043652), we get a palindrome (686383686).

It can be divided in two parts, 2 and 56340034, that added together give a square (56340036 = 7506²).

The spelling of 256340034 in words is "two hundred fifty-six million, three hundred forty thousand, thirty-four".