6434406 has 24 divisors (see below), whose sum is σ = 15209064. Its totient is φ = 1949760.

The previous prime is 6434401. The next prime is 6434429. The reversal of 6434406 is 6044346.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6434406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6434401) 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, 16051 + ... + 16446.

It is an arithmetic number, because the mean of its divisors is an integer number (633711).

Almost surely, 2^6434406 is an apocalyptic number.

6434406 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6434406 is an abundant number, since it is smaller than the sum of its proper divisors (8774658).

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

6434406 is a wasteful number, since it uses less digits than its factorization.

6434406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32516 (or 32513 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 6434406 is about 2536.6130962368. The cubic root of 6434406 is about 185.9956641376.

The spelling of 6434406 in words is "six million, four hundred thirty-four thousand, four hundred six".