2040345305 has 32 divisors (see below), whose sum is σ = 2636789760. Its totient is φ = 1511040960.

The previous prime is 2040345301. The next prime is 2040345319. The reversal of 2040345305 is 5035430402.

It is not a de Polignac number, because 2040345305 - 2² = 2040345301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040345301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 832592 + ... + 835038.

It is an arithmetic number, because the mean of its divisors is an integer number (82399680).

Almost surely, 2^2040345305 is an apocalyptic number.

It is an amenable number.

2040345305 is a deficient number, since it is larger than the sum of its proper divisors (596444455).

2040345305 is a wasteful number, since it uses less digits than its factorization.

2040345305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 2040345305 is about 45170.1815913994. The cubic root of 2040345305 is about 1268.3366955847.

Adding to 2040345305 its reverse (5035430402), we get a palindrome (7075775707).

The spelling of 2040345305 in words is "two billion, forty million, three hundred forty-five thousand, three hundred five".