2064400205 has 32 divisors (see below), whose sum is σ = 2930915328. Its totient is φ = 1365984000.

The previous prime is 2064400199. The next prime is 2064400229. The reversal of 2064400205 is 5020044602.

It is not a de Polignac number, because 2064400205 - 2¹² = 2064396109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402155 + ... + 407255.

It is an arithmetic number, because the mean of its divisors is an integer number (91591104).

Almost surely, 2^2064400205 is an apocalyptic number.

It is an amenable number.

2064400205 is a deficient number, since it is larger than the sum of its proper divisors (866515123).

2064400205 is a wasteful number, since it uses less digits than its factorization.

2064400205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2064400205 is about 45435.6710636038. The cubic root of 2064400205 is about 1273.3016382302.

Adding to 2064400205 its reverse (5020044602), we get a palindrome (7084444807).

The spelling of 2064400205 in words is "two billion, sixty-four million, four hundred thousand, two hundred five".