19690804 has 12 divisors (see below), whose sum is σ = 39381664. Its totient is φ = 8438904.

The previous prime is 19690793. The next prime is 19690807. The reversal of 19690804 is 40809691.

19690804 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19690807) 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, 351594 + ... + 351649.

Almost surely, 2^19690804 is an apocalyptic number.

19690804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19690804 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19690804 is a wasteful number, since it uses less digits than its factorization.

19690804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703254 (or 703252 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 19690804 is about 4437.4321403262. The cubic root of 19690804 is about 270.0356788699.

The spelling of 19690804 in words is "nineteen million, six hundred ninety thousand, eight hundred four".