434256 has 40 divisors (see below), whose sum is σ = 1145760. Its totient is φ = 141696.

The previous prime is 434249. The next prime is 434261. The reversal of 434256 is 652434.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 4⁶ + 3⁸ + 2 + 4⁸ + 5⁷ + 6⁷ .

It is a congruent number.

It is an unprimeable number.

434256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3930 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (28644).

2⁴³⁴²⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572880).

434256 is an abundant number, since it is smaller than the sum of its proper divisors (711504).

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

434256 is a wasteful number, since it uses less digits than its factorization.

434256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 197 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 434256 is about 658.9810315935. The cubic root of 434256 is about 75.7266263429.

The spelling of 434256 in words is "four hundred thirty-four thousand, two hundred fifty-six".