428590 has 8 divisors (see below), whose sum is σ = 771480. Its totient is φ = 171432.

The previous prime is 428579. The next prime is 428629. The reversal of 428590 is 95824.

It is a happy number.

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

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, 21420 + ... + 21439.

It is an arithmetic number, because the mean of its divisors is an integer number (96435).

2⁴²⁸⁵⁹⁰ is an apocalyptic number.

428590 is a deficient number, since it is larger than the sum of its proper divisors (342890).

428590 is a wasteful number, since it uses less digits than its factorization.

428590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42866.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 428590 is about 654.6678547172. The cubic root of 428590 is about 75.3958331324.

The spelling of 428590 in words is "four hundred twenty-eight thousand, five hundred ninety".