1424121320440 has 128 divisors (see below), whose sum is σ = 4115186933760. Its totient is φ = 431114770944.

The previous prime is 1424121320387. The next prime is 1424121320449. The reversal of 1424121320440 is 440231214241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1424121320399 and 1424121320408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424121320449) 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 31 ways as a sum of consecutive naturals, for example, 8421544 + ... + 8588983.

It is an arithmetic number, because the mean of its divisors is an integer number (32149897920).

Almost surely, 2^{1424121320440} is an apocalyptic number.

1424121320440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1424121320440 is an abundant number, since it is smaller than the sum of its proper divisors (2691065613320).

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

1424121320440 is a wasteful number, since it uses less digits than its factorization.

1424121320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17010581 (or 17010577 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1424121320440 its reverse (440231214241), we get a palindrome (1864352534681).

The spelling of 1424121320440 in words is "one trillion, four hundred twenty-four billion, one hundred twenty-one million, three hundred twenty thousand, four hundred forty".