1421043033344 has 72 divisors (see below), whose sum is σ = 3097324954080. Its totient is φ = 645318502400.

The previous prime is 1421043033337. The next prime is 1421043033349. The reversal of 1421043033344 is 4433303401241.

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 1421043033344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421043033349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749967 + ... + 3225585.

It is an arithmetic number, because the mean of its divisors is an integer number (43018402140).

Almost surely, 2^{1421043033344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421043033344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548662477040).

1421043033344 is an abundant number, since it is smaller than the sum of its proper divisors (1676281920736).

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

1421043033344 is a wasteful number, since it uses less digits than its factorization.

1421043033344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476707 (or 476693 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 1421043033344 its reverse (4433303401241), we get a palindrome (5854346434585).

The spelling of 1421043033344 in words is "one trillion, four hundred twenty-one billion, forty-three million, thirty-three thousand, three hundred forty-four".