2039639660 has 12 divisors (see below), whose sum is σ = 4283243328. Its totient is φ = 815855856.

The previous prime is 2039639659. The next prime is 2039639663. The reversal of 2039639660 is 669369302.

It is not an unprimeable number, because it can be changed into a prime (2039639663) 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 3 ways as a sum of consecutive naturals, for example, 50990972 + ... + 50991011.

It is an arithmetic number, because the mean of its divisors is an integer number (356936944).

Almost surely, 2^2039639660 is an apocalyptic number.

2039639660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2039639660 is an abundant number, since it is smaller than the sum of its proper divisors (2243603668).

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

2039639660 is a wasteful number, since it uses less digits than its factorization.

2039639660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101981992 (or 101981990 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 44.

The square root of 2039639660 is about 45162.3699555282. The cubic root of 2039639660 is about 1268.1904623888.

The spelling of 2039639660 in words is "two billion, thirty-nine million, six hundred thirty-nine thousand, six hundred sixty".