804605538 has 32 divisors (see below), whose sum is σ = 1785265920. Its totient is φ = 239686160.

The previous prime is 804605533. The next prime is 804605587. The reversal of 804605538 is 835506408.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 804605496 and 804605505.

It is not an unprimeable number, because it can be changed into a prime (804605533) 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, 99420 + ... + 107207.

It is an arithmetic number, because the mean of its divisors is an integer number (55789560).

Almost surely, 2^804605538 is an apocalyptic number.

804605538 is an abundant number, since it is smaller than the sum of its proper divisors (980660382).

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

804605538 is a wasteful number, since it uses less digits than its factorization.

804605538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206702.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 804605538 is about 28365.5695870892. The cubic root of 804605538 is about 930.0957769321.

The spelling of 804605538 in words is "eight hundred four million, six hundred five thousand, five hundred thirty-eight".