1421343352 has 64 divisors (see below), whose sum is σ = 3170764800. Its totient is φ = 588781440.

The previous prime is 1421343349. The next prime is 1421343461. The reversal of 1421343352 is 2533431241.

It is a happy number.

It is a super-4 number, since 4×1421343352⁴ (a number of 38 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1421343352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82513 + ... + 98239.

It is an arithmetic number, because the mean of its divisors is an integer number (49543200).

Almost surely, 2^1421343352 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 1421343352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585382400).

1421343352 is an abundant number, since it is smaller than the sum of its proper divisors (1749421448).

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

1421343352 is a wasteful number, since it uses less digits than its factorization.

1421343352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15836 (or 15832 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 1421343352 is about 37700.7075795667. The cubic root of 1421343352 is about 1124.3451931325.

Adding to 1421343352 its reverse (2533431241), we get a palindrome (3954774593).

The spelling of 1421343352 in words is "one billion, four hundred twenty-one million, three hundred forty-three thousand, three hundred fifty-two".