20442244421404 has 12 divisors (see below), whose sum is σ = 38525768332744. Its totient is φ = 9434882040624.

The previous prime is 20442244421393. The next prime is 20442244421453. The reversal of 20442244421404 is 40412444224402.

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, 196560042462 + ... + 196560042565.

Almost surely, 2^{20442244421404} is an apocalyptic number.

It is an amenable number.

20442244421404 is a deficient number, since it is larger than the sum of its proper divisors (18083523911340).

20442244421404 is a wasteful number, since it uses less digits than its factorization.

20442244421404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393120085044 (or 393120085042 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 37.

Adding to 20442244421404 its reverse (40412444224402), we get a palindrome (60854688645806).

The spelling of 20442244421404 in words is "twenty trillion, four hundred forty-two billion, two hundred forty-four million, four hundred twenty-one thousand, four hundred four".