20041005444 has 24 divisors (see below), whose sum is σ = 46866506400. Its totient is φ = 6665455104.

The previous prime is 20041005443. The next prime is 20041005461. The reversal of 20041005444 is 44450014002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20041005443) 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, 1854394 + ... + 1865169.

It is an arithmetic number, because the mean of its divisors is an integer number (1952771100).

Almost surely, 2^20041005444 is an apocalyptic number.

It is an amenable number.

20041005444 is an abundant number, since it is smaller than the sum of its proper divisors (26825500956).

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

20041005444 is a wasteful number, since it uses less digits than its factorization.

20041005444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720019 (or 3720017 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 20041005444 its reverse (44450014002), we get a palindrome (64491019446).

The spelling of 20041005444 in words is "twenty billion, forty-one million, five thousand, four hundred forty-four".