812280430 has 32 divisors (see below), whose sum is σ = 1628877600. Its totient is φ = 289575552.

The previous prime is 812280421. The next prime is 812280433. The reversal of 812280430 is 34082218.

812280430 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 (812280433) 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, 103960 + ... + 111499.

It is an arithmetic number, because the mean of its divisors is an integer number (50902425).

Almost surely, 2^812280430 is an apocalyptic number.

812280430 is an abundant number, since it is smaller than the sum of its proper divisors (816597170).

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

812280430 is a wasteful number, since it uses less digits than its factorization.

812280430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215508.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 812280430 is about 28500.5338546491. The cubic root of 812280430 is about 933.0437254801.

The spelling of 812280430 in words is "eight hundred twelve million, two hundred eighty thousand, four hundred thirty".