804404080400 has 30 divisors (see below), whose sum is σ = 1932580804122. Its totient is φ = 321761632000.

The previous prime is 804404080393. The next prime is 804404080427. The reversal of 804404080400 is 4080404408.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 39387959296 + 765016121104 = 198464^2 + 874652^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005504701 + ... + 1005505500.

Almost surely, 2^804404080400 is an apocalyptic number.

804404080400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804404080400 is an abundant number, since it is smaller than the sum of its proper divisors (1128176723722).

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

804404080400 is a wasteful number, since it uses less digits than its factorization.

804404080400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011010219 (or 2011010208 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 804404080400 its reverse (4080404408), we get a palindrome (808484484808).

The spelling of 804404080400 in words is "eight hundred four billion, four hundred four million, eighty thousand, four hundred".