440421100142144 has 56 divisors (see below), whose sum is σ = 973696939072128. Its totient is φ = 195932017456640.

The previous prime is 440421100142131. The next prime is 440421100142147. The reversal of 440421100142144 is 441241001124044.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 440421100142144.

It is not an unprimeable number, because it can be changed into a prime (440421100142147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6655266419 + ... + 6655332594.

Almost surely, 2^{440421100142144} is an apocalyptic number.

440421100142144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

440421100142144 is an abundant number, since it is smaller than the sum of its proper divisors (533275838929984).

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

440421100142144 is a wasteful number, since it uses less digits than its factorization.

440421100142144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13310599083 (or 13310599073 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 440421100142144 its reverse (441241001124044), we get a palindrome (881662101266188).

The spelling of 440421100142144 in words is "four hundred forty trillion, four hundred twenty-one billion, one hundred million, one hundred forty-two thousand, one hundred forty-four".