1980218022 has 16 divisors (see below), whose sum is σ = 4067475312. Its totient is φ = 642232800.

The previous prime is 1980217997. The next prime is 1980218027. The reversal of 1980218022 is 2208120891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980218027) 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 7 ways as a sum of consecutive naturals, for example, 4459729 + ... + 4460172.

It is an arithmetic number, because the mean of its divisors is an integer number (254217207).

Almost surely, 2^1980218022 is an apocalyptic number.

1980218022 is an abundant number, since it is smaller than the sum of its proper divisors (2087257290).

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

1980218022 is a wasteful number, since it uses less digits than its factorization.

1980218022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8919943.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 1980218022 is about 44499.6406951787. The cubic root of 1980218022 is about 1255.7533234814.

The spelling of 1980218022 in words is "one billion, nine hundred eighty million, two hundred eighteen thousand, twenty-two".