809024838 has 16 divisors (see below), whose sum is σ = 1618346736. Its totient is φ = 269625440.

The previous prime is 809024837. The next prime is 809024929. The reversal of 809024838 is 838420908.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 809024838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809024837) 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, 40228 + ... + 56888.

It is an arithmetic number, because the mean of its divisors is an integer number (101146671).

Almost surely, 2^809024838 is an apocalyptic number.

809024838 is an abundant number, since it is smaller than the sum of its proper divisors (809321898).

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

809024838 is a wasteful number, since it uses less digits than its factorization.

809024838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24759.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 809024838 is about 28443.3619320923. The cubic root of 809024838 is about 931.7955206943.

The spelling of 809024838 in words is "eight hundred nine million, twenty-four thousand, eight hundred thirty-eight".