20440419974 has 8 divisors (see below), whose sum is σ = 33019140000. Its totient is φ = 9434039976.

The previous prime is 20440419973. The next prime is 20440420009. The reversal of 20440419974 is 47991404402.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440419973) 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 3 ways as a sum of consecutive naturals, for example, 393084974 + ... + 393085025.

It is an arithmetic number, because the mean of its divisors is an integer number (4127392500).

Almost surely, 2^20440419974 is an apocalyptic number.

20440419974 is a deficient number, since it is larger than the sum of its proper divisors (12578720026).

20440419974 is a wasteful number, since it uses less digits than its factorization.

20440419974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786170014.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 20440419974 in words is "twenty billion, four hundred forty million, four hundred nineteen thousand, nine hundred seventy-four".