804213312444 has 72 divisors (see below), whose sum is σ = 2055262023360. Its totient is φ = 265124496000.

The previous prime is 804213312443. The next prime is 804213312467. The reversal of 804213312444 is 444213312408.

804213312444 is a `hidden beast` number, since 80 + 4 + 2 + 1 + 331 + 244 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 804213312399 and 804213312408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804213312443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3191002 + ... + 3433790.

It is an arithmetic number, because the mean of its divisors is an integer number (28545305880).

Almost surely, 2^804213312444 is an apocalyptic number.

It is an amenable number.

804213312444 is an abundant number, since it is smaller than the sum of its proper divisors (1251048710916).

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

804213312444 is a wasteful number, since it uses less digits than its factorization.

804213312444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243811 (or 243806 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

Subtracting from 804213312444 its sum of digits (36), we obtain a palindrome (804213312408).

The spelling of 804213312444 in words is "eight hundred four billion, two hundred thirteen million, three hundred twelve thousand, four hundred forty-four".