1808870000 has 100 divisors (see below), whose sum is σ = 5005285296. Its totient is φ = 620160000.

The previous prime is 1808869999. The next prime is 1808870009. The reversal of 1808870000 is 788081.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808870009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57080 + ... + 82920.

Almost surely, 2^1808870000 is an apocalyptic number.

1808870000 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 1808870000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2502642648).

1808870000 is an abundant number, since it is smaller than the sum of its proper divisors (3196415296).

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

1808870000 is an equidigital number, since it uses as much as digits as its factorization.

1808870000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25876 (or 25855 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 1808870000 is about 42530.8123599820. The cubic root of 1808870000 is about 1218.4352419689.

It can be divided in two parts, 18088 and 70000, that added together give a palindrome (88088).

The spelling of 1808870000 in words is "one billion, eight hundred eight million, eight hundred seventy thousand".