19973204 has 12 divisors (see below), whose sum is σ = 34993728. Its totient is φ = 9975000.

The previous prime is 19973201. The next prime is 19973221. The reversal of 19973204 is 40237991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19973201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (2916144).

Almost surely, 2^19973204 is an apocalyptic number.

It is an amenable number.

19973204 is a deficient number, since it is larger than the sum of its proper divisors (15020524).

19973204 is a wasteful number, since it uses less digits than its factorization.

19973204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806 (or 5804 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 19973204 is about 4469.1390669792. The cubic root of 19973204 is about 271.3204815889.

The spelling of 19973204 in words is "nineteen million, nine hundred seventy-three thousand, two hundred four".