6434256 has 20 divisors (see below), whose sum is σ = 16621952. Its totient is φ = 2144736.

The previous prime is 6434251. The next prime is 6434287. The reversal of 6434256 is 6524346.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 6 + 4⁴ + 3¹⁴ + 4¹⁰ + 2¹⁹ + 5⁷ + 6² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6434251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66976 + ... + 67071.

Almost surely, 2^6434256 is an apocalyptic number.

It is an amenable number.

6434256 is an abundant number, since it is smaller than the sum of its proper divisors (10187696).

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

6434256 is a wasteful number, since it uses less digits than its factorization.

6434256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134058 (or 134052 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 6434256 is about 2536.5835290800. The cubic root of 6434256 is about 185.9942188052.

The spelling of 6434256 in words is "six million, four hundred thirty-four thousand, two hundred fifty-six".