1979494216 has 16 divisors (see below), whose sum is σ = 4241773440. Its totient is φ = 848354640.

The previous prime is 1979494169. The next prime is 1979494219. The reversal of 1979494216 is 6124949791.

It is not an unprimeable number, because it can be changed into a prime (1979494219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17674000 + ... + 17674111.

It is an arithmetic number, because the mean of its divisors is an integer number (265110840).

Almost surely, 2^1979494216 is an apocalyptic number.

It is an amenable number.

1979494216 is an abundant number, since it is smaller than the sum of its proper divisors (2262279224).

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

1979494216 is a wasteful number, since it uses less digits than its factorization.

1979494216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35348124 (or 35348120 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 1979494216 is about 44491.5072345274. The cubic root of 1979494216 is about 1255.6003045470.

The spelling of 1979494216 in words is "one billion, nine hundred seventy-nine million, four hundred ninety-four thousand, two hundred sixteen".