1345662730 has 8 divisors (see below), whose sum is σ = 2422192932. Its totient is φ = 538265088.

The previous prime is 1345662719. The next prime is 1345662743. The reversal of 1345662730 is 372665431.

It can be written as a sum of positive squares in 2 ways, for example, as 1295352081 + 50310649 = 35991^2 + 7093^2 .

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

It is a super-2 number, since 2×1345662730² = 3621616365822105800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1345662730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67283127 + ... + 67283146.

Almost surely, 2^1345662730 is an apocalyptic number.

1345662730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345662730 is a deficient number, since it is larger than the sum of its proper divisors (1076530202).

1345662730 is a wasteful number, since it uses less digits than its factorization.

1345662730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134566280.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 1345662730 is about 36683.2758897021. The cubic root of 1345662730 is about 1104.0245768570.

The spelling of 1345662730 in words is "one billion, three hundred forty-five million, six hundred sixty-two thousand, seven hundred thirty".