39959998240 has 24 divisors (see below), whose sum is σ = 94405496220. Its totient is φ = 15983999232.

The previous prime is 39959998229. The next prime is 39959998249. The reversal of 39959998240 is 4289995993.

It can be written as a sum of positive squares in 2 ways, for example, as 35707393296 + 4252604944 = 188964^2 + 65212^2 .

It is not an unprimeable number, because it can be changed into a prime (39959998249) 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, 124874835 + ... + 124875154.

Almost surely, 2^39959998240 is an apocalyptic number.

It is an amenable number.

39959998240 is an abundant number, since it is smaller than the sum of its proper divisors (54445497980).

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

39959998240 is a wasteful number, since it uses less digits than its factorization.

39959998240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249750004 (or 249749996 counting only the distinct ones).

The product of its (nonzero) digits is 56687040, while the sum is 67.

The spelling of 39959998240 in words is "thirty-nine billion, nine hundred fifty-nine million, nine hundred ninety-eight thousand, two hundred forty".