1343221400 has 48 divisors (see below), whose sum is σ = 3181939200. Its totient is φ = 527146880.

The previous prime is 1343221393. The next prime is 1343221421. The reversal of 1343221400 is 41223431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52760 + ... + 73959.

It is an arithmetic number, because the mean of its divisors is an integer number (66290400).

Almost surely, 2^1343221400 is an apocalyptic number.

1343221400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343221400 is an abundant number, since it is smaller than the sum of its proper divisors (1838717800).

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

1343221400 is a wasteful number, since it uses less digits than its factorization.

1343221400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126788 (or 126779 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1343221400 is about 36649.9849931756. The cubic root of 1343221400 is about 1103.3565243911.

Adding to 1343221400 its reverse (41223431), we get a palindrome (1384444831).

The spelling of 1343221400 in words is "one billion, three hundred forty-three million, two hundred twenty-one thousand, four hundred".