6428424 has 32 divisors (see below), whose sum is σ = 16338240. Its totient is φ = 2107200.

The previous prime is 6428419. The next prime is 6428447. The reversal of 6428424 is 4248246.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 6428391 and 6428400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732 + ... + 3659.

It is an arithmetic number, because the mean of its divisors is an integer number (510570).

Almost surely, 2^6428424 is an apocalyptic number.

It is an amenable number.

6428424 is an abundant number, since it is smaller than the sum of its proper divisors (9909816).

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

6428424 is a wasteful number, since it uses less digits than its factorization.

6428424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461 (or 4457 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 6428424 is about 2535.4336907125. The cubic root of 6428424 is about 185.9380068578.

The spelling of 6428424 in words is "six million, four hundred twenty-eight thousand, four hundred twenty-four".