428932 has 12 divisors (see below), whose sum is σ = 857920. Its totient is φ = 183816.

The previous prime is 428899. The next prime is 428951. The reversal of 428932 is 239824.

428932 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 15319 = 428932 / (4 + 2 + 8 + 9 + 3 + 2).

It is a d-powerful number, because it can be written as 4⁹ + 2⁵ + 9³ + 8⁵ + 3⁷ + 2¹⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 428932.

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, 7632 + ... + 7687.

2⁴²⁸⁹³² is an apocalyptic number.

It is an amenable number.

428932 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428932 is a wasteful number, since it uses less digits than its factorization.

428932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330 (or 15328 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 428932 is about 654.9290037859. The cubic root of 428932 is about 75.4158822231.

The spelling of 428932 in words is "four hundred twenty-eight thousand, nine hundred thirty-two".