804981600 has 216 divisors, whose sum is σ = 2962591632. Its totient is φ = 205286400.

The previous prime is 804981581. The next prime is 804981601. The reversal of 804981600 is 6189408.

It is a happy number.

804981600 is a `hidden beast` number, since 8 + 0 + 49 + 8 + 1 + 600 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804981601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 163170 + ... + 168030.

It is an arithmetic number, because the mean of its divisors is an integer number (13715702).

Almost surely, 2^804981600 is an apocalyptic number.

804981600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804981600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481295816).

804981600 is an abundant number, since it is smaller than the sum of its proper divisors (2157610032).

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

804981600 is a wasteful number, since it uses less digits than its factorization.

804981600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910 (or 4894 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 804981600 is about 28372.1976589759. The cubic root of 804981600 is about 930.2406591891.

The spelling of 804981600 in words is "eight hundred four million, nine hundred eighty-one thousand, six hundred".