1979923244 has 24 divisors (see below), whose sum is σ = 3733009728. Its totient is φ = 913415040.

The previous prime is 1979923217. The next prime is 1979923249. The reversal of 1979923244 is 4423299791.

It is a junction number, because it is equal to n+sod(n) for n = 1979923192 and 1979923201.

It is not an unprimeable number, because it can be changed into a prime (1979923249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137549 + ... + 151259.

It is an arithmetic number, because the mean of its divisors is an integer number (155542072).

Almost surely, 2^1979923244 is an apocalyptic number.

It is an amenable number.

1979923244 is a deficient number, since it is larger than the sum of its proper divisors (1753086484).

1979923244 is a wasteful number, since it uses less digits than its factorization.

1979923244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16505 (or 16503 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The square root of 1979923244 is about 44496.3284328044. The cubic root of 1979923244 is about 1255.6910093291.

The spelling of 1979923244 in words is "one billion, nine hundred seventy-nine million, nine hundred twenty-three thousand, two hundred forty-four".