804311380 has 24 divisors (see below), whose sum is σ = 1762492032. Its totient is φ = 307736352.

The previous prime is 804311377. The next prime is 804311381. The reversal of 804311380 is 83113408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804311381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873792 + ... + 874711.

It is an arithmetic number, because the mean of its divisors is an integer number (73437168).

Almost surely, 2^804311380 is an apocalyptic number.

It is an amenable number.

804311380 is an abundant number, since it is smaller than the sum of its proper divisors (958180652).

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

804311380 is a wasteful number, since it uses less digits than its factorization.

804311380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748535 (or 1748533 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 804311380 is about 28360.3839889378. The cubic root of 804311380 is about 929.9824176735.

Adding to 804311380 its reverse (83113408), we get a palindrome (887424788).

The spelling of 804311380 in words is "eight hundred four million, three hundred eleven thousand, three hundred eighty".