428382 has 16 divisors (see below), whose sum is σ = 952080. Its totient is φ = 142776.

The previous prime is 428369. The next prime is 428401. The reversal of 428382 is 283824.

It is a super-2 number, since 2×428382² = 367022275848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) 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 (27).

It is a congruent number.

It is an unprimeable number.

428382 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3913 + ... + 4020.

It is an arithmetic number, because the mean of its divisors is an integer number (59505).

2⁴²⁸³⁸² is an apocalyptic number.

428382 is an abundant number, since it is smaller than the sum of its proper divisors (523698).

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

428382 is a wasteful number, since it uses less digits than its factorization.

428382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7944 (or 7938 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 428382 is about 654.5089762562. The cubic root of 428382 is about 75.3836343169.

The spelling of 428382 in words is "four hundred twenty-eight thousand, three hundred eighty-two".