2040200405 has 8 divisors (see below), whose sum is σ = 2448969432. Its totient is φ = 1631674368.

The previous prime is 2040200401. The next prime is 2040200429. The reversal of 2040200405 is 5040020402.

It can be written as a sum of positive squares in 4 ways, for example, as 231739729 + 1808460676 = 15223^2 + 42526^2 .

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 2040200405 - 2² = 2040200401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040200401) 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, 41732 + ... + 76301.

It is an arithmetic number, because the mean of its divisors is an integer number (306121179).

Almost surely, 2^2040200405 is an apocalyptic number.

It is an amenable number.

2040200405 is a deficient number, since it is larger than the sum of its proper divisors (408769027).

2040200405 is a wasteful number, since it uses less digits than its factorization.

2040200405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121495.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2040200405 is about 45168.5776287011. The cubic root of 2040200405 is about 1268.3066702197.

Adding to 2040200405 its reverse (5040020402), we get a palindrome (7080220807).

The spelling of 2040200405 in words is "two billion, forty million, two hundred thousand, four hundred five".