1340052043 has 16 divisors (see below), whose sum is σ = 1499008896. Its totient is φ = 1187403840.

The previous prime is 1340052023. The next prime is 1340052061. The reversal of 1340052043 is 3402500431.

It is a cyclic number.

It is not a de Polignac number, because 1340052043 - 2⁵ = 1340052011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340052023) 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 15 ways as a sum of consecutive naturals, for example, 244671 + ... + 250087.

It is an arithmetic number, because the mean of its divisors is an integer number (93688056).

Almost surely, 2^1340052043 is an apocalyptic number.

1340052043 is a deficient number, since it is larger than the sum of its proper divisors (158956853).

1340052043 is a wasteful number, since it uses less digits than its factorization.

1340052043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1340052043 is about 36606.7212817537. The cubic root of 1340052043 is about 1102.4880439123.

Adding to 1340052043 its reverse (3402500431), we get a palindrome (4742552474).

The spelling of 1340052043 in words is "one billion, three hundred forty million, fifty-two thousand, forty-three".