1979789446 has 16 divisors (see below), whose sum is σ = 3105988704. Its totient is φ = 944659584.

The previous prime is 1979789407. The next prime is 1979789467. The reversal of 1979789446 is 6449879791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29781 + ... + 69616.

It is an arithmetic number, because the mean of its divisors is an integer number (194124294).

Almost surely, 2^1979789446 is an apocalyptic number.

1979789446 is a deficient number, since it is larger than the sum of its proper divisors (1126199258).

1979789446 is a wasteful number, since it uses less digits than its factorization.

1979789446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99855.

The product of its digits is 27433728, while the sum is 64.

The square root of 1979789446 is about 44494.8249350416. The cubic root of 1979789446 is about 1255.6627232611.

The spelling of 1979789446 in words is "one billion, nine hundred seventy-nine million, seven hundred eighty-nine thousand, four hundred forty-six".