2043340345 has 8 divisors (see below), whose sum is σ = 2452491720. Its totient is φ = 1634350080.

The previous prime is 2043340337. The next prime is 2043340361. The reversal of 2043340345 is 5430433402.

It can be written as a sum of positive squares in 4 ways, for example, as 768564729 + 1274775616 = 27723^2 + 35704^2 .

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

It is not a de Polignac number, because 2043340345 - 2³ = 2043340337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10350 + ... + 64759.

It is an arithmetic number, because the mean of its divisors is an integer number (306561465).

Almost surely, 2^2043340345 is an apocalyptic number.

It is an amenable number.

2043340345 is a deficient number, since it is larger than the sum of its proper divisors (409151375).

2043340345 is an equidigital number, since it uses as much as digits as its factorization.

2043340345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80555.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 2043340345 is about 45203.3222783459. The cubic root of 2043340345 is about 1268.9569928645.

Adding to 2043340345 its reverse (5430433402), we get a palindrome (7473773747).

The spelling of 2043340345 in words is "two billion, forty-three million, three hundred forty thousand, three hundred forty-five".