2005311426 has 8 divisors (see below), whose sum is σ = 4010622864. Its totient is φ = 668437140.

The previous prime is 2005311389. The next prime is 2005311437. The reversal of 2005311426 is 6241135002.

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

2005311426 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2005311396 and 2005311405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167109280 + ... + 167109291.

It is an arithmetic number, because the mean of its divisors is an integer number (501327858).

Almost surely, 2^2005311426 is an apocalyptic number.

2005311426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2005311426 is a wasteful number, since it uses less digits than its factorization.

2005311426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334218576.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2005311426 is about 44780.7037238139. The cubic root of 2005311426 is about 1261.0353935877.

Adding to 2005311426 its reverse (6241135002), we get a palindrome (8246446428).

The spelling of 2005311426 in words is "two billion, five million, three hundred eleven thousand, four hundred twenty-six".