20020400242444 has 24 divisors (see below), whose sum is σ = 40050488788128. Its totient is φ = 8578095467520.

The previous prime is 20020400242433. The next prime is 20020400242481. The reversal of 20020400242444 is 44424200402002.

20020400242444 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86384917 + ... + 86616364.

It is an arithmetic number, because the mean of its divisors is an integer number (1668770366172).

Almost surely, 2^{20020400242444} is an apocalyptic number.

It is an amenable number.

20020400242444 is an abundant number, since it is smaller than the sum of its proper divisors (20030088545684).

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

20020400242444 is a wasteful number, since it uses less digits than its factorization.

20020400242444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173005425 (or 173005423 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20020400242444 its reverse (44424200402002), we get a palindrome (64444600644446).

The spelling of 20020400242444 in words is "twenty trillion, twenty billion, four hundred million, two hundred forty-two thousand, four hundred forty-four".