1340311542 has 8 divisors (see below), whose sum is σ = 2680623096. Its totient is φ = 446770512.

The previous prime is 1340311537. The next prime is 1340311573. The reversal of 1340311542 is 2451130431.

It is a happy number.

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

1340311542 is an admirable number.

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, 111692623 + ... + 111692634.

It is an arithmetic number, because the mean of its divisors is an integer number (335077887).

Almost surely, 2^1340311542 is an apocalyptic number.

1340311542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1340311542 is a wasteful number, since it uses less digits than its factorization.

1340311542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223385262.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1340311542 is about 36610.2655275812. The cubic root of 1340311542 is about 1102.5592043525.

Adding to 1340311542 its reverse (2451130431), we get a palindrome (3791441973).

The spelling of 1340311542 in words is "one billion, three hundred forty million, three hundred eleven thousand, five hundred forty-two".