810424120 has 48 divisors (see below), whose sum is σ = 2004304680. Its totient is φ = 294697920.

The previous prime is 810424091. The next prime is 810424129. The reversal of 810424120 is 21424018.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 810424091 and 810424100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810424129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78882 + ... + 88561.

Almost surely, 2^810424120 is an apocalyptic number.

It is an amenable number.

810424120 is an abundant number, since it is smaller than the sum of its proper divisors (1193880560).

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

810424120 is a wasteful number, since it uses less digits than its factorization.

810424120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167476 (or 167461 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 810424120 is about 28467.9489953175. The cubic root of 810424120 is about 932.3324196267.

Adding to 810424120 its reverse (21424018), we get a palindrome (831848138).

The spelling of 810424120 in words is "eight hundred ten million, four hundred twenty-four thousand, one hundred twenty".