20424044201240 has 16 divisors (see below), whose sum is σ = 45954099452880. Its totient is φ = 8169617680480.

The previous prime is 20424044201153. The next prime is 20424044201251. The reversal of 20424044201240 is 4210244042402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255300552476 + ... + 255300552555.

It is an arithmetic number, because the mean of its divisors is an integer number (2872131215805).

Almost surely, 2^{20424044201240} is an apocalyptic number.

20424044201240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20424044201240 is an abundant number, since it is smaller than the sum of its proper divisors (25530055251640).

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

20424044201240 is a wasteful number, since it uses less digits than its factorization.

20424044201240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510601105042 (or 510601105038 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 20424044201240 its reverse (4210244042402), we get a palindrome (24634288243642).

The spelling of 20424044201240 in words is "twenty trillion, four hundred twenty-four billion, forty-four million, two hundred one thousand, two hundred forty".