19429908 has 12 divisors (see below), whose sum is σ = 45336480. Its totient is φ = 6476632.

The previous prime is 19429897. The next prime is 19429957. The reversal of 19429908 is 80992491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 19429908.

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, 809568 + ... + 809591.

It is an arithmetic number, because the mean of its divisors is an integer number (3778040).

Almost surely, 2^19429908 is an apocalyptic number.

It is an amenable number.

19429908 is an abundant number, since it is smaller than the sum of its proper divisors (25906572).

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

19429908 is a wasteful number, since it uses less digits than its factorization.

19429908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619166 (or 1619164 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 19429908 is about 4407.9369323982. The cubic root of 19429908 is about 268.8377475865.

The spelling of 19429908 in words is "nineteen million, four hundred twenty-nine thousand, nine hundred eight".