6434820 has 72 divisors (see below), whose sum is σ = 22311744. Its totient is φ = 1470528.

The previous prime is 6434773. The next prime is 6434833. The reversal of 6434820 is 284346.

6434820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294 + ... + 3813.

Almost surely, 2^6434820 is an apocalyptic number.

6434820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6434820 is an abundant number, since it is smaller than the sum of its proper divisors (15876924).

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

6434820 is a wasteful number, since it uses less digits than its factorization.

6434820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129 (or 5124 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 6434820 is about 2536.6946998013. The cubic root of 6434820 is about 185.9996531384. Note that the first 3 decimals are identical.

The spelling of 6434820 in words is "six million, four hundred thirty-four thousand, eight hundred twenty".