1347943680 has 180 divisors, whose sum is σ = 4823559972. Its totient is φ = 359424000.

The previous prime is 1347943679. The next prime is 1347943697. The reversal of 1347943680 is 863497431.

1347943680 is a `hidden beast` number, since 134 + 7 + 9 + 436 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 183223296 + 1164720384 = 13536^2 + 34128^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97180 + ... + 110180.

Almost surely, 2^1347943680 is an apocalyptic number.

1347943680 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 1347943680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2411779986).

1347943680 is an abundant number, since it is smaller than the sum of its proper divisors (3475616292).

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

1347943680 is an equidigital number, since it uses as much as digits as its factorization.

1347943680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13034 (or 13011 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 1347943680 is about 36714.3525068875. The cubic root of 1347943680 is about 1104.6480127575.

The spelling of 1347943680 in words is "one billion, three hundred forty-seven million, nine hundred forty-three thousand, six hundred eighty".