2005540422 has 32 divisors (see below), whose sum is σ = 4255480800. Its totient is φ = 627936768.

The previous prime is 2005540409. The next prime is 2005540423. The reversal of 2005540422 is 2240455002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2005540392 and 2005540401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005540423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32604 + ... + 71232.

It is an arithmetic number, because the mean of its divisors is an integer number (132983775).

Almost surely, 2^2005540422 is an apocalyptic number.

2005540422 is an abundant number, since it is smaller than the sum of its proper divisors (2249940378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005540422 is a wasteful number, since it uses less digits than its factorization.

2005540422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39160.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2005540422 is about 44783.2605110436. The cubic root of 2005540422 is about 1261.0833929600.

Adding to 2005540422 its reverse (2240455002), we get a palindrome (4245995424).

The spelling of 2005540422 in words is "two billion, five million, five hundred forty thousand, four hundred twenty-two".