428942 has 8 divisors (see below), whose sum is σ = 659232. Its totient is φ = 209200.

The previous prime is 428899. The next prime is 428951. The reversal of 428942 is 249824.

428942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

428942 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 3 ways as a sum of consecutive naturals, for example, 2534 + ... + 2697.

It is an arithmetic number, because the mean of its divisors is an integer number (82404).

2⁴²⁸⁹⁴² is an apocalyptic number.

428942 is a deficient number, since it is larger than the sum of its proper divisors (230290).

428942 is a wasteful number, since it uses less digits than its factorization.

428942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

The product of its digits is 4608, while the sum is 29.

The square root of 428942 is about 654.9366381567. The cubic root of 428942 is about 75.4164682934.

The spelling of 428942 in words is "four hundred twenty-eight thousand, nine hundred forty-two".