813030 has 32 divisors (see below), whose sum is σ = 2001888. Its totient is φ = 211200.

The previous prime is 813023. The next prime is 813041. The reversal of 813030 is 30318.

It is a super-2 number, since 2×813030² = 1322035561800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 900 + ... + 1560.

It is an arithmetic number, because the mean of its divisors is an integer number (62559).

2⁸¹³⁰³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000944).

813030 is an abundant number, since it is smaller than the sum of its proper divisors (1188858).

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

813030 is a wasteful number, since it uses less digits than its factorization.

813030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 813030 is about 901.6817620425. The cubic root of 813030 is about 93.3330640582. Note that the first 3 decimals are identical.

Adding to 813030 its reverse (30318), we get a palindrome (843348).

The spelling of 813030 in words is "eight hundred thirteen thousand, thirty".