1982720022 has 8 divisors (see below), whose sum is σ = 3965440056. Its totient is φ = 660906672.

The previous prime is 1982720021. The next prime is 1982720057. The reversal of 1982720022 is 2200272891.

It is a sphenic number, since it is the product of 3 distinct primes.

1982720022 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982720021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165226663 + ... + 165226674.

It is an arithmetic number, because the mean of its divisors is an integer number (495680007).

Almost surely, 2^1982720022 is an apocalyptic number.

1982720022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1982720022 is a wasteful number, since it uses less digits than its factorization.

1982720022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330453342.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1982720022 is about 44527.7444072794. The cubic root of 1982720022 is about 1256.2819811764.

The spelling of 1982720022 in words is "one billion, nine hundred eighty-two million, seven hundred twenty thousand, twenty-two".