19641104 has 40 divisors (see below), whose sum is σ = 44901888. Its totient is φ = 8144640.

The previous prime is 19641077. The next prime is 19641107. The reversal of 19641104 is 40114691.

It is not an unprimeable number, because it can be changed into a prime (19641107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 6300.

Almost surely, 2^19641104 is an apocalyptic number.

19641104 is a gapful number since it is divisible by the number (14) 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 19641104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22450944).

19641104 is an abundant number, since it is smaller than the sum of its proper divisors (25260784).

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

19641104 is a wasteful number, since it uses less digits than its factorization.

19641104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703 (or 5697 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 19641104 is about 4431.8285165381. The cubic root of 19641104 is about 269.8082955604.

Adding to 19641104 its reverse (40114691), we get a palindrome (59755795).

The spelling of 19641104 in words is "nineteen million, six hundred forty-one thousand, one hundred four".