20040343300240 has 40 divisors (see below), whose sum is σ = 47155169251008. Its totient is φ = 7919557349760.

The previous prime is 20040343300217. The next prime is 20040343300247. The reversal of 20040343300240 is 4200334304002.

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

It is not an unprimeable number, because it can be changed into a prime (20040343300247) 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, 1509055356 + ... + 1509068635.

Almost surely, 2^{20040343300240} is an apocalyptic number.

20040343300240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040343300240 is an abundant number, since it is smaller than the sum of its proper divisors (27114825950768).

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

20040343300240 is a wasteful number, since it uses less digits than its factorization.

20040343300240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018124087 (or 3018124081 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20040343300240 its reverse (4200334304002), we get a palindrome (24240677604242).

The spelling of 20040343300240 in words is "twenty trillion, forty billion, three hundred forty-three million, three hundred thousand, two hundred forty".