6433428 has 24 divisors (see below), whose sum is σ = 15168832. Its totient is φ = 2121984.

The previous prime is 6433421. The next prime is 6433519. The reversal of 6433428 is 8243346.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁶ + 4⁴ + 3¹³ + 3¹⁴ + 4⁵ + 2¹³ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 6433395 and 6433404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6433421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600 + ... + 3927.

Almost surely, 2^6433428 is an apocalyptic number.

It is an amenable number.

6433428 is an abundant number, since it is smaller than the sum of its proper divisors (8735404).

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

6433428 is a wasteful number, since it uses less digits than its factorization.

6433428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631 (or 5629 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 6433428 is about 2536.4203121723. The cubic root of 6433428 is about 185.9862401661.

The spelling of 6433428 in words is "six million, four hundred thirty-three thousand, four hundred twenty-eight".