428435 has 8 divisors (see below), whose sum is σ = 587616. Its totient is φ = 293760.

The previous prime is 428429. The next prime is 428471. The reversal of 428435 is 534824.

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

It is not a de Polignac number, because 428435 - 2¹² = 424339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6086 + ... + 6155.

It is an arithmetic number, because the mean of its divisors is an integer number (73452).

2⁴²⁸⁴³⁵ is an apocalyptic number.

428435 is a deficient number, since it is larger than the sum of its proper divisors (159181).

428435 is a wasteful number, since it uses less digits than its factorization.

428435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12253.

The product of its digits is 3840, while the sum is 26.

The square root of 428435 is about 654.5494633716. The cubic root of 428435 is about 75.3867430438.

The spelling of 428435 in words is "four hundred twenty-eight thousand, four hundred thirty-five".