6442434 has 12 divisors (see below), whose sum is σ = 13958646. Its totient is φ = 2147472.

The previous prime is 6442433. The next prime is 6442459. The reversal of 6442434 is 4342446.

It can be written as a sum of positive squares in only one way, i.e., 4995225 + 1447209 = 2235^2 + 1203^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6442398 and 6442407.

It is not an unprimeable number, because it can be changed into a prime (6442433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178939 + ... + 178974.

Almost surely, 2^6442434 is an apocalyptic number.

6442434 is an abundant number, since it is smaller than the sum of its proper divisors (7516212).

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

6442434 is a wasteful number, since it uses less digits than its factorization.

6442434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357921 (or 357918 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 6442434 is about 2538.1950279677. The cubic root of 6442434 is about 186.0729855783.

The spelling of 6442434 in words is "six million, four hundred forty-two thousand, four hundred thirty-four".