19974204 has 18 divisors (see below), whose sum is σ = 50490440. Its totient is φ = 6658056.

The previous prime is 19974203. The next prime is 19974221. The reversal of 19974204 is 40247991.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 554839 = 19974204 / (1 + 9 + 9 + 7 + 4 + 2 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19974203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277384 + ... + 277455.

Almost surely, 2^19974204 is an apocalyptic number.

It is an amenable number.

19974204 is an abundant number, since it is smaller than the sum of its proper divisors (30516236).

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

19974204 is a wasteful number, since it uses less digits than its factorization.

19974204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554849 (or 554844 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 19974204 is about 4469.2509439502. The cubic root of 19974204 is about 271.3250095881.

The spelling of 19974204 in words is "nineteen million, nine hundred seventy-four thousand, two hundred four".