1343308428 has 192 divisors, whose sum is σ = 4373053440. Its totient is φ = 346420800.

The previous prime is 1343308423. The next prime is 1343308441. The reversal of 1343308428 is 8248033431.

It is a happy number.

1343308428 is a `hidden beast` number, since 1 + 343 + 308 + 4 + 2 + 8 = 666.

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 = 1343308392 and 1343308401.

It is not an unprimeable number, because it can be changed into a prime (1343308423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1355013 + ... + 1356003.

It is an arithmetic number, because the mean of its divisors is an integer number (22776320).

Almost surely, 2^1343308428 is an apocalyptic number.

1343308428 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 1343308428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2186526720).

1343308428 is an abundant number, since it is smaller than the sum of its proper divisors (3029745012).

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

1343308428 is a wasteful number, since it uses less digits than its factorization.

1343308428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 1343308428 is about 36651.1722595608. The cubic root of 1343308428 is about 1103.3803528873.

The spelling of 1343308428 in words is "one billion, three hundred forty-three million, three hundred eight thousand, four hundred twenty-eight".