19790044 has 12 divisors (see below), whose sum is σ = 35477568. Its totient is φ = 9653600.

The previous prime is 19790033. The next prime is 19790063. The reversal of 19790044 is 44009791.

It is a junction number, because it is equal to n+sod(n) for n = 19789991 and 19790009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60172 + ... + 60499.

It is an arithmetic number, because the mean of its divisors is an integer number (2956464).

Almost surely, 2^19790044 is an apocalyptic number.

It is an amenable number.

19790044 is a deficient number, since it is larger than the sum of its proper divisors (15687524).

19790044 is a wasteful number, since it uses less digits than its factorization.

19790044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120716 (or 120714 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 19790044 is about 4448.6002292856. The cubic root of 19790044 is about 270.4885712613.

The spelling of 19790044 in words is "nineteen million, seven hundred ninety thousand, forty-four".