1868310020 has 24 divisors (see below), whose sum is σ = 3924375000. Its totient is φ = 747148032.

The previous prime is 1868310001. The next prime is 1868310023. The reversal of 1868310020 is 200138681.

It can be written as a sum of positive squares in 4 ways, for example, as 3452164 + 1864857856 = 1858^2 + 43184^2 .

It is not an unprimeable number, because it can be changed into a prime (1868310023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106856 + ... + 123104.

It is an arithmetic number, because the mean of its divisors is an integer number (163515625).

Almost surely, 2^1868310020 is an apocalyptic number.

1868310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868310020 is an abundant number, since it is smaller than the sum of its proper divisors (2056064980).

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

1868310020 is a wasteful number, since it uses less digits than its factorization.

1868310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22007 (or 22005 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1868310020 is about 43223.9519248298. The cubic root of 1868310020 is about 1231.6377197353.

The spelling of 1868310020 in words is "one billion, eight hundred sixty-eight million, three hundred ten thousand, twenty".