1940216205 has 32 divisors (see below), whose sum is σ = 3307958784. Its totient is φ = 967689216.

The previous prime is 1940216191. The next prime is 1940216207. The reversal of 1940216205 is 5026120491.

It is not a de Polignac number, because 1940216205 - 2²⁵ = 1906661773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940216207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15804 + ... + 64266.

It is an arithmetic number, because the mean of its divisors is an integer number (103373712).

Almost surely, 2^1940216205 is an apocalyptic number.

1940216205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1940216205 is a deficient number, since it is larger than the sum of its proper divisors (1367742579).

1940216205 is a wasteful number, since it uses less digits than its factorization.

1940216205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48645.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1940216205 is about 44047.8853635450. The cubic root of 1940216205 is about 1247.2400342898.

Adding to 1940216205 its reverse (5026120491), we get a palindrome (6966336696).

The spelling of 1940216205 in words is "one billion, nine hundred forty million, two hundred sixteen thousand, two hundred five".