1982106722 has 6 divisors (see below), whose sum is σ = 2973254529. Its totient is φ = 991021880.

The previous prime is 1982106713. The next prime is 1982106739. The reversal of 1982106722 is 2276012891.

It can be written as a sum of positive squares in 2 ways, for example, as 1462221121 + 519885601 = 38239^2 + 22801^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=31481.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 47222 + ... + 78702.

Almost surely, 2^1982106722 is an apocalyptic number.

1982106722 is a deficient number, since it is larger than the sum of its proper divisors (991147807).

1982106722 is an frugal number, since it uses more digits than its factorization.

1982106722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62964 (or 31483 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1982106722 is about 44520.8571570674. The cubic root of 1982106722 is about 1256.1524357058.

The spelling of 1982106722 in words is "one billion, nine hundred eighty-two million, one hundred six thousand, seven hundred twenty-two".