19849104 has 80 divisors (see below), whose sum is σ = 62168640. Its totient is φ = 6013440.

The previous prime is 19849103. The next prime is 19849111. The reversal of 19849104 is 40194891.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (19849103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2664 + ... + 6840.

It is an arithmetic number, because the mean of its divisors is an integer number (777108).

Almost surely, 2^19849104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19849104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31084320).

19849104 is an abundant number, since it is smaller than the sum of its proper divisors (42319536).

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

19849104 is a wasteful number, since it uses less digits than its factorization.

19849104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205 (or 4193 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 19849104 is about 4455.2333272232. The cubic root of 19849104 is about 270.7573796532.

The spelling of 19849104 in words is "nineteen million, eight hundred forty-nine thousand, one hundred four".