256352434 has 16 divisors (see below), whose sum is σ = 432113472. Its totient is φ = 113172048.

The previous prime is 256352407. The next prime is 256352461. The reversal of 256352434 is 434253652.

256352434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (256352407) and next prime (256352461).

It is a self number, because there is not a number n which added to its sum of digits gives 256352434.

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, 213744 + ... + 214939.

It is an arithmetic number, because the mean of its divisors is an integer number (27007092).

Almost surely, 2^256352434 is an apocalyptic number.

256352434 is a deficient number, since it is larger than the sum of its proper divisors (175761038).

256352434 is a wasteful number, since it uses less digits than its factorization.

256352434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428721.

The product of its digits is 86400, while the sum is 34.

The square root of 256352434 is about 16011.0097745270. The cubic root of 256352434 is about 635.2516695195.

The spelling of 256352434 in words is "two hundred fifty-six million, three hundred fifty-two thousand, four hundred thirty-four".