1340066057 has 8 divisors (see below), whose sum is σ = 1472409120. Its totient is φ = 1209476160.

The previous prime is 1340066041. The next prime is 1340066113. The reversal of 1340066057 is 7506600431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340066057 - 2⁴ = 1340066041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340066657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436688 + ... + 439745.

It is an arithmetic number, because the mean of its divisors is an integer number (184051140).

Almost surely, 2^1340066057 is an apocalyptic number.

It is an amenable number.

1340066057 is a deficient number, since it is larger than the sum of its proper divisors (132343063).

1340066057 is a wasteful number, since it uses less digits than its factorization.

1340066057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876583.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1340066057 is about 36606.9126941893. The cubic root of 1340066057 is about 1102.4918870998.

Adding to 1340066057 its reverse (7506600431), we get a palindrome (8846666488).

The spelling of 1340066057 in words is "one billion, three hundred forty million, sixty-six thousand, fifty-seven".