440020224020 has 48 divisors (see below), whose sum is σ = 995326566528. Its totient is φ = 162435715200.

The previous prime is 440020224011. The next prime is 440020224037. The reversal of 440020224020 is 20422020044.

It is a super-2 number, since 2×440020224020² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 440020223983 and 440020224001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116347 + ... + 1458173.

It is an arithmetic number, because the mean of its divisors is an integer number (20735970136).

Almost surely, 2^440020224020 is an apocalyptic number.

It is an amenable number.

440020224020 is an abundant number, since it is smaller than the sum of its proper divisors (555306342508).

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

440020224020 is a wasteful number, since it uses less digits than its factorization.

440020224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346800 (or 346798 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 440020224020 its reverse (20422020044), we get a palindrome (460442244064).

The spelling of 440020224020 in words is "four hundred forty billion, twenty million, two hundred twenty-four thousand, twenty".