19804200924 has 24 divisors (see below), whose sum is σ = 46320099840. Its totient is φ = 6585643504.

The previous prime is 19804200917. The next prime is 19804200929. The reversal of 19804200924 is 42900240891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19804200929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964364 + ... + 1974419.

It is an arithmetic number, because the mean of its divisors is an integer number (1930004160).

Almost surely, 2^19804200924 is an apocalyptic number.

It is an amenable number.

19804200924 is an abundant number, since it is smaller than the sum of its proper divisors (26515898916).

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

19804200924 is a wasteful number, since it uses less digits than its factorization.

19804200924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939209 (or 3939207 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 19804200924 in words is "nineteen billion, eight hundred four million, two hundred thousand, nine hundred twenty-four".