830490 has 64 divisors (see below), whose sum is σ = 2211840. Its totient is φ = 198720.

The previous prime is 830483. The next prime is 830497. The reversal of 830490 is 94038.

830490 = T₁₆₄ + T₁₆₅ + ... + T₂₁₀.

It is an interprime number because it is at equal distance from previous prime (830483) and next prime (830497).

It is a self number, because there is not a number n which added to its sum of digits gives 830490.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 830490.

It is not an unprimeable number, because it can be changed into a prime (830497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17647 + ... + 17693.

It is an arithmetic number, because the mean of its divisors is an integer number (34560).

2⁸³⁰⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 830490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105920).

830490 is an abundant number, since it is smaller than the sum of its proper divisors (1381350).

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

830490 is a wasteful number, since it uses less digits than its factorization.

830490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 830490 is about 911.3122406728. The cubic root of 830490 is about 93.9964537669.

The spelling of 830490 in words is "eight hundred thirty thousand, four hundred ninety".