804409652 has 24 divisors (see below), whose sum is σ = 1424449992. Its totient is φ = 397440000.

The previous prime is 804409649. The next prime is 804409663. The reversal of 804409652 is 256904408.

It can be written as a sum of positive squares in 4 ways, for example, as 655667236 + 148742416 = 25606^2 + 12196^2 .

It is a super-2 number, since 2×804409652² = 1294149776461522208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241148 + ... + 244460.

It is an arithmetic number, because the mean of its divisors is an integer number (59352083).

Almost surely, 2^804409652 is an apocalyptic number.

It is an amenable number.

804409652 is a deficient number, since it is larger than the sum of its proper divisors (620040340).

804409652 is a wasteful number, since it uses less digits than its factorization.

804409652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019 (or 4017 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 804409652 is about 28362.1164936610. The cubic root of 804409652 is about 930.0202916912.

The spelling of 804409652 in words is "eight hundred four million, four hundred nine thousand, six hundred fifty-two".