428234 has 8 divisors (see below), whose sum is σ = 663168. Its totient is φ = 207180.

The previous prime is 428231. The next prime is 428249. The reversal of 428234 is 432824.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (428231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (82896).

2⁴²⁸²³⁴ is an apocalyptic number.

428234 is a deficient number, since it is larger than the sum of its proper divisors (234934).

428234 is a wasteful number, since it uses less digits than its factorization.

428234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940.

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

The square root of 428234 is about 654.3959046327. The cubic root of 428234 is about 75.3749519859.

The spelling of 428234 in words is "four hundred twenty-eight thousand, two hundred thirty-four".