20042422400400 has 60 divisors (see below), whose sum is σ = 64202559759792. Its totient is φ = 5344645973120.

The previous prime is 20042422400369. The next prime is 20042422400423. The reversal of 20042422400400 is 400422424002.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8351008134 + ... + 8351010533.

Almost surely, 2^{20042422400400} is an apocalyptic number.

20042422400400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20042422400400 is an abundant number, since it is smaller than the sum of its proper divisors (44160137359392).

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

20042422400400 is a wasteful number, since it uses less digits than its factorization.

20042422400400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16702018688 (or 16702018677 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20042422400400 its reverse (400422424002), we get a palindrome (20442844824402).

The spelling of 20042422400400 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred thousand, four hundred".