1340355052 has 6 divisors (see below), whose sum is σ = 2345621348. Its totient is φ = 670177524.

The previous prime is 1340355017. The next prime is 1340355077. The reversal of 1340355052 is 2505530431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340355052.

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 as a sum of consecutive naturals, namely, 167544378 + ... + 167544385.

Almost surely, 2^1340355052 is an apocalyptic number.

It is an amenable number.

1340355052 is a deficient number, since it is larger than the sum of its proper divisors (1005266296).

1340355052 is a wasteful number, since it uses less digits than its factorization.

1340355052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335088767 (or 335088765 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1340355052 is about 36610.8597549962. The cubic root of 1340355052 is about 1102.5711348702.

Adding to 1340355052 its reverse (2505530431), we get a palindrome (3845885483).

The spelling of 1340355052 in words is "one billion, three hundred forty million, three hundred fifty-five thousand, fifty-two".