1813710852 has 30 divisors (see below), whose sum is σ = 4741399278. Its totient is φ = 604570176.

The previous prime is 1813710817. The next prime is 1813710863. The reversal of 1813710852 is 2580173181.

It can be written as a sum of positive squares in only one way, i.e., 1234538496 + 579172356 = 35136^2 + 24066^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2798613 + ... + 2799260.

Almost surely, 2^1813710852 is an apocalyptic number.

1813710852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1813710852 is an abundant number, since it is smaller than the sum of its proper divisors (2927688426).

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

1813710852 is a wasteful number, since it uses less digits than its factorization.

1813710852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597889 (or 5597878 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 1813710852 is about 42587.6842760909. The cubic root of 1813710852 is about 1219.5211889766.

The spelling of 1813710852 in words is "one billion, eight hundred thirteen million, seven hundred ten thousand, eight hundred fifty-two".