812244534 has 16 divisors (see below), whose sum is σ = 1630964160. Its totient is φ = 269669000.

The previous prime is 812244533. The next prime is 812244571. The reversal of 812244534 is 435442218.

It is a junction number, because it is equal to n+sod(n) for n = 812244495 and 812244504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812244533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268164 + ... + 271175.

It is an arithmetic number, because the mean of its divisors is an integer number (101935260).

Almost surely, 2^812244534 is an apocalyptic number.

812244534 is an abundant number, since it is smaller than the sum of its proper divisors (818719626).

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

812244534 is a wasteful number, since it uses less digits than its factorization.

812244534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539595.

The product of its digits is 30720, while the sum is 33.

The square root of 812244534 is about 28499.9041051018. The cubic root of 812244534 is about 933.0299810352.

It can be divided in two parts, 81224 and 4534, that added together give a palindrome (85758).

The spelling of 812244534 in words is "eight hundred twelve million, two hundred forty-four thousand, five hundred thirty-four".