1804455108 has 18 divisors (see below), whose sum is σ = 4561261614. Its totient is φ = 601485024.

The previous prime is 1804455101. The next prime is 1804455127. The reversal of 1804455108 is 8015544081.

It can be written as a sum of positive squares in only one way, i.e., 1158177024 + 646278084 = 34032^2 + 25422^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 50123753 = 1804455108 / (1 + 8 + 0 + 4 + 4 + 5 + 5 + 1 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (1804455101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25061841 + ... + 25061912.

It is an arithmetic number, because the mean of its divisors is an integer number (253403423).

Almost surely, 2^1804455108 is an apocalyptic number.

1804455108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1804455108 is an abundant number, since it is smaller than the sum of its proper divisors (2756806506).

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

1804455108 is a wasteful number, since it uses less digits than its factorization.

1804455108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50123763 (or 50123758 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 1804455108 is about 42478.8783750230. The cubic root of 1804455108 is about 1217.4431599295.

Adding to 1804455108 its reverse (8015544081), we get a palindrome (9819999189).

The spelling of 1804455108 in words is "one billion, eight hundred four million, four hundred fifty-five thousand, one hundred eight".