830438 has 16 divisors (see below), whose sum is σ = 1486080. Its totient is φ = 340296.

The previous prime is 830419. The next prime is 830441. The reversal of 830438 is 834038.

It is a congruent number.

It is an unprimeable number.

830438 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, 968 + ... + 1611.

It is an arithmetic number, because the mean of its divisors is an integer number (92880).

2⁸³⁰⁴³⁸ is an apocalyptic number.

830438 is a deficient number, since it is larger than the sum of its proper divisors (655642).

830438 is a wasteful number, since it uses less digits than its factorization.

830438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 830438 is about 911.2837099389. The cubic root of 830438 is about 93.9944919060.

Subtracting 830438 from its reverse (834038), we obtain a square (3600 = 60²).

The spelling of 830438 in words is "eight hundred thirty thousand, four hundred thirty-eight".