2040434545 has 8 divisors (see below), whose sum is σ = 2494720296. Its totient is φ = 1601548416.

The previous prime is 2040434533. The next prime is 2040434593. The reversal of 2040434545 is 5454340402.

It can be written as a sum of positive squares in 4 ways, for example, as 595750464 + 1444684081 = 24408^2 + 38009^2 .

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 2040434545 - 2²³ = 2032045937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3849612 + ... + 3850141.

It is an arithmetic number, because the mean of its divisors is an integer number (311840037).

Almost surely, 2^2040434545 is an apocalyptic number.

It is an amenable number.

2040434545 is a deficient number, since it is larger than the sum of its proper divisors (454285751).

2040434545 is an equidigital number, since it uses as much as digits as its factorization.

2040434545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699811.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 2040434545 is about 45171.1694004041. The cubic root of 2040434545 is about 1268.3551866895.

Adding to 2040434545 its reverse (5454340402), we get a palindrome (7494774947).

The spelling of 2040434545 in words is "two billion, forty million, four hundred thirty-four thousand, five hundred forty-five".