830428 has 24 divisors (see below), whose sum is σ = 1549184. Its totient is φ = 388800.

The previous prime is 830419. The next prime is 830441. The reversal of 830428 is 824038.

It is a super-2 number, since 2×830428² = 1379221326368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

830428 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, 4498 + ... + 4678.

2⁸³⁰⁴²⁸ is an apocalyptic number.

It is an amenable number.

830428 is a deficient number, since it is larger than the sum of its proper divisors (718756).

830428 is a wasteful number, since it uses less digits than its factorization.

830428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 830428 is about 911.2782231569. The cubic root of 830428 is about 93.9941146157.

The spelling of 830428 in words is "eight hundred thirty thousand, four hundred twenty-eight".