1343223420 has 144 divisors (see below), whose sum is σ = 4724772864. Its totient is φ = 279100800.

The previous prime is 1343223419. The next prime is 1343223439. The reversal of 1343223420 is 243223431.

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 47 ways as a sum of consecutive naturals, for example, 37605 + ... + 64035.

Almost surely, 2^1343223420 is an apocalyptic number.

1343223420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1343223420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2362386432).

1343223420 is an abundant number, since it is smaller than the sum of its proper divisors (3381549444).

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

1343223420 is a wasteful number, since it uses less digits than its factorization.

1343223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26472 (or 26459 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1343223420 is about 36650.0125511575. The cubic root of 1343223420 is about 1103.3570774841.

Adding to 1343223420 its reverse (243223431), we get a palindrome (1586446851).

The spelling of 1343223420 in words is "one billion, three hundred forty-three million, two hundred twenty-three thousand, four hundred twenty".