1979417198 has 16 divisors (see below), whose sum is σ = 3240881280. Its totient is φ = 899225400.

The previous prime is 1979417183. The next prime is 1979417203. The reversal of 1979417198 is 8917149791.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15713 + ... + 64851.

It is an arithmetic number, because the mean of its divisors is an integer number (202555080).

Almost surely, 2^1979417198 is an apocalyptic number.

1979417198 is a deficient number, since it is larger than the sum of its proper divisors (1261464082).

1979417198 is a wasteful number, since it uses less digits than its factorization.

1979417198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50983.

The product of its digits is 1143072, while the sum is 56.

The square root of 1979417198 is about 44490.6416901352. The cubic root of 1979417198 is about 1255.5840200709.

The spelling of 1979417198 in words is "one billion, nine hundred seventy-nine million, four hundred seventeen thousand, one hundred ninety-eight".