1340548443 has 24 divisors (see below), whose sum is σ = 2141663888. Its totient is φ = 802654272.

The previous prime is 1340548441. The next prime is 1340548453. The reversal of 1340548443 is 3448450431.

1340548443 is a `hidden beast` number, since 134 + 0 + 5 + 484 + 43 = 666.

It is not a de Polignac number, because 1340548443 - 2¹ = 1340548441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340548398 and 1340548407.

It is not an unprimeable number, because it can be changed into a prime (1340548441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150505 + ... + 159162.

Almost surely, 2^1340548443 is an apocalyptic number.

1340548443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1340548443 is a deficient number, since it is larger than the sum of its proper divisors (801115445).

1340548443 is a wasteful number, since it uses less digits than its factorization.

1340548443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309723 (or 309720 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 1340548443 is about 36613.5008296120. The cubic root of 1340548443 is about 1102.6241598952.

Adding to 1340548443 its reverse (3448450431), we get a palindrome (4788998874).

The spelling of 1340548443 in words is "one billion, three hundred forty million, five hundred forty-eight thousand, four hundred forty-three".