19434808 has 16 divisors (see below), whose sum is σ = 38584080. Its totient is φ = 9145728.

The previous prime is 19434797. The next prime is 19434817. The reversal of 19434808 is 80843491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71316 + ... + 71587.

It is an arithmetic number, because the mean of its divisors is an integer number (2411505).

Almost surely, 2^19434808 is an apocalyptic number.

It is an amenable number.

19434808 is a deficient number, since it is larger than the sum of its proper divisors (19149272).

19434808 is a wasteful number, since it uses less digits than its factorization.

19434808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142926 (or 142922 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 19434808 is about 4408.4927129349. The cubic root of 19434808 is about 268.8603449527.

The spelling of 19434808 in words is "nineteen million, four hundred thirty-four thousand, eight hundred eight".