812025340 has 48 divisors (see below), whose sum is σ = 1950746112. Its totient is φ = 278139456.

The previous prime is 812025337. The next prime is 812025341. The reversal of 812025340 is 43520218.

812025340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812025341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189259 + ... + 193501.

It is an arithmetic number, because the mean of its divisors is an integer number (40640544).

Almost surely, 2^812025340 is an apocalyptic number.

It is an amenable number.

812025340 is an abundant number, since it is smaller than the sum of its proper divisors (1138720772).

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

812025340 is a wasteful number, since it uses less digits than its factorization.

812025340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626 (or 5624 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 812025340 is about 28496.0583239156. The cubic root of 812025340 is about 932.9460436802.

Adding to 812025340 its reverse (43520218), we get a palindrome (855545558).

The spelling of 812025340 in words is "eight hundred twelve million, twenty-five thousand, three hundred forty".