1340628514 has 8 divisors (see below), whose sum is σ = 2011345308. Its totient is φ = 670180080.

The previous prime is 1340628473. The next prime is 1340628563. The reversal of 1340628514 is 4158260431.

It can be written as a sum of positive squares in 2 ways, for example, as 1188525625 + 152102889 = 34475^2 + 12333^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1340628514.

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, 54097 + ... + 74884.

Almost surely, 2^1340628514 is an apocalyptic number.

1340628514 is a deficient number, since it is larger than the sum of its proper divisors (670716794).

1340628514 is a wasteful number, since it uses less digits than its factorization.

1340628514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134180.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1340628514 is about 36614.5942760534. The cubic root of 1340628514 is about 1102.6461127165.

Adding to 1340628514 its reverse (4158260431), we get a palindrome (5498888945).

The spelling of 1340628514 in words is "one billion, three hundred forty million, six hundred twenty-eight thousand, five hundred fourteen".