2064185380 has 24 divisors (see below), whose sum is σ = 4346879040. Its totient is φ = 823371360.

The previous prime is 2064185239. The next prime is 2064185399. The reversal of 2064185380 is 835814602.

It is a happy number.

It is a super-2 number, since 2×2064185380² = 8521722566011488800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136566 + ... + 150925.

It is an arithmetic number, because the mean of its divisors is an integer number (181119960).

Almost surely, 2^2064185380 is an apocalyptic number.

2064185380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2064185380 is an abundant number, since it is smaller than the sum of its proper divisors (2282693660).

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

2064185380 is a wasteful number, since it uses less digits than its factorization.

2064185380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287859 (or 287857 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 2064185380 is about 45433.3069454558. The cubic root of 2064185380 is about 1273.2574693859.

Adding to 2064185380 its reverse (835814602), we get a palindrome (2899999982).

The spelling of 2064185380 in words is "two billion, sixty-four million, one hundred eighty-five thousand, three hundred eighty".