40020204421 has 8 divisors (see below), whose sum is σ = 41983315200. Its totient is φ = 38095967280.

The previous prime is 40020204383. The next prime is 40020204449. The reversal of 40020204421 is 12440202004.

40020204421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40020204421 - 2⁷ = 40020204293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40020204221) 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, 9716301 + ... + 9720418.

It is an arithmetic number, because the mean of its divisors is an integer number (5247914400).

Almost surely, 2^40020204421 is an apocalyptic number.

It is an amenable number.

40020204421 is a deficient number, since it is larger than the sum of its proper divisors (1963110779).

40020204421 is a wasteful number, since it uses less digits than its factorization.

40020204421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19436819.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 40020204421 its reverse (12440202004), we get a palindrome (52460406425).

The spelling of 40020204421 in words is "forty billion, twenty million, two hundred four thousand, four hundred twenty-one".