19429100 has 36 divisors (see below), whose sum is σ = 42617064. Its totient is φ = 7687680.

The previous prime is 19429099. The next prime is 19429133. The reversal of 19429100 is 192491.

It is a self number, because there is not a number n which added to its sum of digits gives 19429100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8699 + ... + 10701.

Almost surely, 2^19429100 is an apocalyptic number.

19429100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19429100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21308532).

19429100 is an abundant number, since it is smaller than the sum of its proper divisors (23187964).

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

19429100 is a wasteful number, since it uses less digits than its factorization.

19429100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2107 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 19429100 is about 4407.8452785913. The cubic root of 19429100 is about 268.8340209620.

The spelling of 19429100 in words is "nineteen million, four hundred twenty-nine thousand, one hundred".