1343409228 has 144 divisors (see below), whose sum is σ = 3967052544. Its totient is φ = 375408000.

The previous prime is 1343409203. The next prime is 1343409251. The reversal of 1343409228 is 8229043431.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1343409192 and 1343409201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4237726 + ... + 4238042.

It is an arithmetic number, because the mean of its divisors is an integer number (27548976).

Almost surely, 2^1343409228 is an apocalyptic number.

1343409228 is a gapful number since it is divisible by the number (18) 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 1343409228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1983526272).

1343409228 is an abundant number, since it is smaller than the sum of its proper divisors (2623643316).

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

1343409228 is a wasteful number, since it uses less digits than its factorization.

1343409228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1343409228 is about 36652.5473603132. The cubic root of 1343409228 is about 1103.4079509071.

The spelling of 1343409228 in words is "one billion, three hundred forty-three million, four hundred nine thousand, two hundred twenty-eight".