1804885860 has 48 divisors (see below), whose sum is σ = 5070977856. Its totient is φ = 479655552.

The previous prime is 1804885837. The next prime is 1804885861. The reversal of 1804885860 is 685884081.

It is a super-2 number, since 2×1804885860² = 6515225935255879200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1804885861) 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 15 ways as a sum of consecutive naturals, for example, 33754 + ... + 68913.

It is an arithmetic number, because the mean of its divisors is an integer number (105645372).

Almost surely, 2^1804885860 is an apocalyptic number.

1804885860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1804885860 is an abundant number, since it is smaller than the sum of its proper divisors (3266091996).

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

1804885860 is a wasteful number, since it uses less digits than its factorization.

1804885860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102972 (or 102970 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 48.

The square root of 1804885860 is about 42483.9482628439. The cubic root of 1804885860 is about 1217.5400265404.

The spelling of 1804885860 in words is "one billion, eight hundred four million, eight hundred eighty-five thousand, eight hundred sixty".