1949219982 has 12 divisors (see below), whose sum is σ = 4223310000. Its totient is φ = 649739988.

The previous prime is 1949219981. The next prime is 1949220071. The reversal of 1949219982 is 2899129491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949219981) 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 5 ways as a sum of consecutive naturals, for example, 54144982 + ... + 54145017.

It is an arithmetic number, because the mean of its divisors is an integer number (351942500).

Almost surely, 2^1949219982 is an apocalyptic number.

1949219982 is an abundant number, since it is smaller than the sum of its proper divisors (2274090018).

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

1949219982 is a wasteful number, since it uses less digits than its factorization.

1949219982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108290007 (or 108290004 counting only the distinct ones).

The product of its digits is 839808, while the sum is 54.

The square root of 1949219982 is about 44149.9714835695. The cubic root of 1949219982 is about 1249.1663736706.

The spelling of 1949219982 in words is "one billion, nine hundred forty-nine million, two hundred nineteen thousand, nine hundred eighty-two".