20040443401 has 8 divisors (see below), whose sum is σ = 23012949600. Its totient is φ = 17259711840.

The previous prime is 20040443327. The next prime is 20040443407. The reversal of 20040443401 is 10434404002.

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 20040443401 - 2³¹ = 17892959753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20040443407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47943436 + ... + 47943853.

It is an arithmetic number, because the mean of its divisors is an integer number (2876618700).

Almost surely, 2^20040443401 is an apocalyptic number.

It is an amenable number.

20040443401 is a deficient number, since it is larger than the sum of its proper divisors (2972506199).

20040443401 is a wasteful number, since it uses less digits than its factorization.

20040443401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95887319.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20040443401 its reverse (10434404002), we get a palindrome (30474847403).

The spelling of 20040443401 in words is "twenty billion, forty million, four hundred forty-three thousand, four hundred one".