440020443120 has 80 divisors (see below), whose sum is σ = 1365174185760. Its totient is φ = 117243231232.

The previous prime is 440020443113. The next prime is 440020443139. The reversal of 440020443120 is 21344020044.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 450939 + ... + 1040858.

It is an arithmetic number, because the mean of its divisors is an integer number (17064677322).

Almost surely, 2^440020443120 is an apocalyptic number.

440020443120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440020443120 is an abundant number, since it is smaller than the sum of its proper divisors (925153742640).

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

440020443120 is a wasteful number, since it uses less digits than its factorization.

440020443120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493042 (or 1493036 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 440020443120 its reverse (21344020044), we get a palindrome (461364463164).

The spelling of 440020443120 in words is "four hundred forty billion, twenty million, four hundred forty-three thousand, one hundred twenty".