428342 has 8 divisors (see below), whose sum is σ = 653232. Its totient is φ = 210600.

The previous prime is 428339. The next prime is 428353. The reversal of 428342 is 243824.

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

It is a super-3 number, since 3×428342³ = 235772547017333064, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (81654).

2⁴²⁸³⁴² is an apocalyptic number.

428342 is a deficient number, since it is larger than the sum of its proper divisors (224890).

428342 is a wasteful number, since it uses less digits than its factorization.

428342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574.

The product of its digits is 1536, while the sum is 23.

The square root of 428342 is about 654.4784182844. The cubic root of 428342 is about 75.3812879382.

The spelling of 428342 in words is "four hundred twenty-eight thousand, three hundred forty-two".