256700334 has 16 divisors (see below), whose sum is σ = 560073600. Its totient is φ = 77787960.

The previous prime is 256700321. The next prime is 256700363. The reversal of 256700334 is 433007652.

It is a super-2 number, since 2×256700334² = 131790122951423112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1944634 + ... + 1944765.

It is an arithmetic number, because the mean of its divisors is an integer number (35004600).

Almost surely, 2^256700334 is an apocalyptic number.

256700334 is an abundant number, since it is smaller than the sum of its proper divisors (303373266).

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

256700334 is a wasteful number, since it uses less digits than its factorization.

256700334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889415.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 256700334 is about 16021.8704900520. The cubic root of 256700334 is about 635.5389096959.

Adding to 256700334 its reverse (433007652), we get a palindrome (689707986).

The spelling of 256700334 in words is "two hundred fifty-six million, seven hundred thousand, three hundred thirty-four".