1340543518 has 8 divisors (see below), whose sum is σ = 2116647720. Its totient is φ = 634994280.

The previous prime is 1340543507. The next prime is 1340543527. The reversal of 1340543518 is 8153450431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17638693 + ... + 17638768.

It is an arithmetic number, because the mean of its divisors is an integer number (264580965).

Almost surely, 2^1340543518 is an apocalyptic number.

1340543518 is a deficient number, since it is larger than the sum of its proper divisors (776104202).

1340543518 is a wasteful number, since it uses less digits than its factorization.

1340543518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35277482.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1340543518 is about 36613.4335729388. The cubic root of 1340543518 is about 1102.6228095944.

Adding to 1340543518 its reverse (8153450431), we get a palindrome (9493993949).

The spelling of 1340543518 in words is "one billion, three hundred forty million, five hundred forty-three thousand, five hundred eighteen".