1980219802 has 16 divisors (see below), whose sum is σ = 3241043424. Its totient is φ = 899910000.

The previous prime is 1980219793. The next prime is 1980219809. The reversal of 1980219802 is 2089120891.

It is not an unprimeable number, because it can be changed into a prime (1980219809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195052 + ... + 204952.

It is an arithmetic number, because the mean of its divisors is an integer number (202565214).

Almost surely, 2^1980219802 is an apocalyptic number.

1980219802 is a deficient number, since it is larger than the sum of its proper divisors (1260823622).

1980219802 is a wasteful number, since it uses less digits than its factorization.

1980219802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19005.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 1980219802 is about 44499.6606953356. The cubic root of 1980219802 is about 1255.7536997431.

The spelling of 1980219802 in words is "one billion, nine hundred eighty million, two hundred nineteen thousand, eight hundred two".