20086708240 has 40 divisors (see below), whose sum is σ = 47114906328. Its totient is φ = 7963576320.

The previous prime is 20086708223. The next prime is 20086708267. The reversal of 20086708240 is 4280768002.

It can be written as a sum of positive squares in 4 ways, for example, as 392515344 + 19694192896 = 19812^2 + 140336^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20086708240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1101951 + ... + 1120030.

Almost surely, 2^20086708240 is an apocalyptic number.

20086708240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20086708240 is an abundant number, since it is smaller than the sum of its proper divisors (27028198088).

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

20086708240 is a wasteful number, since it uses less digits than its factorization.

20086708240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222107 (or 2222101 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 20086708240 in words is "twenty billion, eighty-six million, seven hundred eight thousand, two hundred forty".