6446434 has 24 divisors (see below), whose sum is σ = 10830960. Its totient is φ = 2869056.

The previous prime is 6446413. The next prime is 6446437. The reversal of 6446434 is 4346446.

It is a super-2 number, since 2×6446434² = 83113022632712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6446396 and 6446405.

It is not an unprimeable number, because it can be changed into a prime (6446437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10689 + ... + 11275.

It is an arithmetic number, because the mean of its divisors is an integer number (451290).

Almost surely, 2^6446434 is an apocalyptic number.

6446434 is a deficient number, since it is larger than the sum of its proper divisors (4384526).

6446434 is a wasteful number, since it uses less digits than its factorization.

6446434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 625 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

The square root of 6446434 is about 2538.9828672128. The cubic root of 6446434 is about 186.1114874839. Note that the first 3 decimals are identical.

The spelling of 6446434 in words is "six million, four hundred forty-six thousand, four hundred thirty-four".