433428 has 24 divisors (see below), whose sum is σ = 1065120. Its totient is φ = 136800.

The previous prime is 433421. The next prime is 433429. The reversal of 433428 is 824334.

433428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 13.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 433398 and 433407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433421) by changing a digit.

433428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (44380).

2⁴³³⁴²⁸ is an apocalyptic number.

It is an amenable number.

433428 is an abundant number, since it is smaller than the sum of its proper divisors (631692).

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

433428 is a wasteful number, since it uses less digits than its factorization.

433428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927 (or 1925 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 433428 is about 658.3524891728. The cubic root of 433428 is about 75.6784661639.

It can be divided in two parts, 433 and 428, that added together give a triangular number (861 = T₄₁).

The spelling of 433428 in words is "four hundred thirty-three thousand, four hundred twenty-eight".