804501918 has 96 divisors (see below), whose sum is σ = 1967408352. Its totient is φ = 235468800.

The previous prime is 804501917. The next prime is 804501941. The reversal of 804501918 is 819105408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804501911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 916896 + ... + 917772.

It is an arithmetic number, because the mean of its divisors is an integer number (20493837).

Almost surely, 2^804501918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804501918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983704176).

804501918 is an abundant number, since it is smaller than the sum of its proper divisors (1162906434).

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

804501918 is a wasteful number, since it uses less digits than its factorization.

804501918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 804501918 is about 28363.7430181561. The cubic root of 804501918 is about 930.0558481897.

The spelling of 804501918 in words is "eight hundred four million, five hundred one thousand, nine hundred eighteen".