19944936 has 48 divisors (see below), whose sum is σ = 58930560. Its totient is φ = 6043680.

The previous prime is 19944917. The next prime is 19944937. The reversal of 19944936 is 63944991.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 19944891 and 19944900.

It is not an unprimeable number, because it can be changed into a prime (19944937) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11800 + ... + 13383.

It is an arithmetic number, because the mean of its divisors is an integer number (1227720).

Almost surely, 2^19944936 is an apocalyptic number.

It is an amenable number.

19944936 is an abundant number, since it is smaller than the sum of its proper divisors (38985624).

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

19944936 is a wasteful number, since it uses less digits than its factorization.

19944936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25206 (or 25199 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 19944936 is about 4465.9753693902. The cubic root of 19944936 is about 271.1924215388.

The spelling of 19944936 in words is "nineteen million, nine hundred forty-four thousand, nine hundred thirty-six".