19892044 has 6 divisors (see below), whose sum is σ = 34811084. Its totient is φ = 9946020.

The previous prime is 19892021. The next prime is 19892053. The reversal of 19892044 is 44029891.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19891994 and 19892012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2486502 + ... + 2486509.

Almost surely, 2^19892044 is an apocalyptic number.

It is an amenable number.

19892044 is a deficient number, since it is larger than the sum of its proper divisors (14919040).

19892044 is a wasteful number, since it uses less digits than its factorization.

19892044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973015 (or 4973013 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 19892044 is about 4460.0497755070. The cubic root of 19892044 is about 270.9524841462.

The spelling of 19892044 in words is "nineteen million, eight hundred ninety-two thousand, forty-four".