1340330645 has 8 divisors (see below), whose sum is σ = 1632403104. Its totient is φ = 1056260304.

The previous prime is 1340330639. The next prime is 1340330647. The reversal of 1340330645 is 5460330431.

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 1340330645 - 2⁸ = 1340330389 is a prime.

It is a super-2 number, since 2×1340330645² = 3592972475852232050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340330647) 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, 2000159 + ... + 2000828.

It is an arithmetic number, because the mean of its divisors is an integer number (204050388).

Almost surely, 2^1340330645 is an apocalyptic number.

It is an amenable number.

1340330645 is a deficient number, since it is larger than the sum of its proper divisors (292072459).

1340330645 is an equidigital number, since it uses as much as digits as its factorization.

1340330645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001059.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 1340330645 is about 36610.5264234209. The cubic root of 1340330645 is about 1102.5644424602.

The spelling of 1340330645 in words is "one billion, three hundred forty million, three hundred thirty thousand, six hundred forty-five".