440021123124 has 24 divisors (see below), whose sum is σ = 1120053768288. Its totient is φ = 133339734240.

The previous prime is 440021123093. The next prime is 440021123153. The reversal of 440021123124 is 421321120044.

It is a junction number, because it is equal to n+sod(n) for n = 440021123094 and 440021123103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666746547 + ... + 1666746810.

It is an arithmetic number, because the mean of its divisors is an integer number (46668907012).

Almost surely, 2^440021123124 is an apocalyptic number.

440021123124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

440021123124 is an abundant number, since it is smaller than the sum of its proper divisors (680032645164).

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

440021123124 is a wasteful number, since it uses less digits than its factorization.

440021123124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333493375 (or 3333493373 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 440021123124 its reverse (421321120044), we get a palindrome (861342243168).

The spelling of 440021123124 in words is "four hundred forty billion, twenty-one million, one hundred twenty-three thousand, one hundred twenty-four".