1804420800 has 1176 divisors, whose sum is σ = 8675132256. Its totient is φ = 358318080.

The previous prime is 1804420781. The next prime is 1804420801. The reversal of 1804420800 is 80244081.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1804420801) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 106142392 + ... + 106142408.

Almost surely, 2^1804420800 is an apocalyptic number.

1804420800 is a gapful number since it is divisible by the number (10) 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 1804420800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4337566128).

1804420800 is an abundant number, since it is smaller than the sum of its proper divisors (6870711456).

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

1804420800 is a wasteful number, since it uses less digits than its factorization.

1804420800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 1804420800 is about 42478.4745488818. The cubic root of 1804420800 is about 1217.4354441553.

Adding to 1804420800 its reverse (80244081), we get a palindrome (1884664881).

The spelling of 1804420800 in words is "one billion, eight hundred four million, four hundred twenty thousand, eight hundred".