1343258320 has 20 divisors (see below), whose sum is σ = 3123075780. Its totient is φ = 537303296.

The previous prime is 1343258317. The next prime is 1343258347. The reversal of 1343258320 is 238523431.

It can be written as a sum of positive squares in 2 ways, for example, as 443018304 + 900240016 = 21048^2 + 30004^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8395285 + ... + 8395444.

It is an arithmetic number, because the mean of its divisors is an integer number (156153789).

Almost surely, 2^1343258320 is an apocalyptic number.

1343258320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343258320 is an abundant number, since it is smaller than the sum of its proper divisors (1779817460).

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

1343258320 is a wasteful number, since it uses less digits than its factorization.

1343258320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16790742 (or 16790736 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1343258320 is about 36650.4886734133. The cubic root of 1343258320 is about 1103.3666333103.

The spelling of 1343258320 in words is "one billion, three hundred forty-three million, two hundred fifty-eight thousand, three hundred twenty".