428370 has 32 divisors (see below), whose sum is σ = 1045440. Its totient is φ = 112320.

The previous prime is 428369. The next prime is 428401. The reversal of 428370 is 73824.

It is a self number, because there is not a number n which added to its sum of digits gives 428370.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428370.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205 + ... + 3335.

It is an arithmetic number, because the mean of its divisors is an integer number (32670).

2⁴²⁸³⁷⁰ is an apocalyptic number.

It is a pronic number, being equal to 654×655.

428370 is an abundant number, since it is smaller than the sum of its proper divisors (617070).

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

428370 is a wasteful number, since it uses less digits than its factorization.

428370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 428370 is about 654.4998090145. The cubic root of 428370 is about 75.3829304187.

The spelling of 428370 in words is "four hundred twenty-eight thousand, three hundred seventy".