1347041540 has 72 divisors (see below), whose sum is σ = 3086543880. Its totient is φ = 493569024.

The previous prime is 1347041533. The next prime is 1347041557. The reversal of 1347041540 is 451407431.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 434639104 + 912402436 = 20848^2 + 30206^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461606 + ... + 464514.

It is an arithmetic number, because the mean of its divisors is an integer number (42868665).

Almost surely, 2^1347041540 is an apocalyptic number.

1347041540 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 1347041540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1543271940).

1347041540 is an abundant number, since it is smaller than the sum of its proper divisors (1739502340).

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

1347041540 is a wasteful number, since it uses less digits than its factorization.

1347041540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081 (or 3066 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1347041540 is about 36702.0645195880. The cubic root of 1347041540 is about 1104.4015213608.

Adding to 1347041540 its reverse (451407431), we get a palindrome (1798448971).

The spelling of 1347041540 in words is "one billion, three hundred forty-seven million, forty-one thousand, five hundred forty".