2005321450 has 24 divisors (see below), whose sum is σ = 4068980640. Its totient is φ = 729207600.

The previous prime is 2005321421. The next prime is 2005321453. The reversal of 2005321450 is 541235002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2005321453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1822470 + ... + 1823569.

It is an arithmetic number, because the mean of its divisors is an integer number (169540860).

Almost surely, 2^2005321450 is an apocalyptic number.

2005321450 is an abundant number, since it is smaller than the sum of its proper divisors (2063659190).

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

2005321450 is a wasteful number, since it uses less digits than its factorization.

2005321450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646062 (or 3646057 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2005321450 is about 44780.8156468816. The cubic root of 2005321450 is about 1261.0374947738.

Adding to 2005321450 its reverse (541235002), we get a palindrome (2546556452).

The spelling of 2005321450 in words is "two billion, five million, three hundred twenty-one thousand, four hundred fifty".