804028064 has 72 divisors (see below), whose sum is σ = 1852194708. Its totient is φ = 342558720.

The previous prime is 804028063. The next prime is 804028087. The reversal of 804028064 is 460820408.

It can be written as a sum of positive squares in 2 ways, for example, as 685392400 + 118635664 = 26180^2 + 10892^2 .

It is a super-2 number, since 2×804028064² = 1292922255399176192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 804028064.

It is not an unprimeable number, because it can be changed into a prime (804028063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282392 + ... + 285224.

Almost surely, 2^804028064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804028064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926097354).

804028064 is an abundant number, since it is smaller than the sum of its proper divisors (1048166644).

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

804028064 is a wasteful number, since it uses less digits than its factorization.

804028064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038 (or 3023 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 804028064 is about 28355.3886236814. The cubic root of 804028064 is about 929.8732104487.

The spelling of 804028064 in words is "eight hundred four million, twenty-eight thousand, sixty-four".