428235 has 8 divisors (see below), whose sum is σ = 685200. Its totient is φ = 228384.

The previous prime is 428231. The next prime is 428249. The reversal of 428235 is 532824.

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

It is not a de Polignac number, because 428235 - 2² = 428231 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 14260 + ... + 14289.

It is an arithmetic number, because the mean of its divisors is an integer number (85650).

2⁴²⁸²³⁵ is an apocalyptic number.

428235 is a deficient number, since it is larger than the sum of its proper divisors (256965).

428235 is a wasteful number, since it uses less digits than its factorization.

428235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28557.

The product of its digits is 1920, while the sum is 24.

The square root of 428235 is about 654.3966686957. The cubic root of 428235 is about 75.3750106571.

The spelling of 428235 in words is "four hundred twenty-eight thousand, two hundred thirty-five".