1804444416 has 216 divisors, whose sum is σ = 5446515984. Its totient is φ = 573972480.

The previous prime is 1804444403. The next prime is 1804444463. The reversal of 1804444416 is 6144444081.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5199955 + ... + 5200301.

Almost surely, 2^1804444416 is an apocalyptic number.

1804444416 is a gapful number since it is divisible by the number (16) 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 1804444416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723257992).

1804444416 is an abundant number, since it is smaller than the sum of its proper divisors (3642071568).

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

1804444416 is a wasteful number, since it uses less digits than its factorization.

1804444416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 1804444416 is about 42478.7525240561. The cubic root of 1804444416 is about 1217.4407553388.

Adding to 1804444416 its reverse (6144444081), we get a palindrome (7948888497).

The spelling of 1804444416 in words is "one billion, eight hundred four million, four hundred forty-four thousand, four hundred sixteen".