19113404 has 12 divisors (see below), whose sum is σ = 34015800. Its totient is φ = 9394608.

The previous prime is 19113403. The next prime is 19113427. The reversal of 19113404 is 40431191.

It is a self number, because there is not a number n which added to its sum of digits gives 19113404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19113403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40259 + ... + 40730.

It is an arithmetic number, because the mean of its divisors is an integer number (2834650).

Almost surely, 2^19113404 is an apocalyptic number.

It is an amenable number.

19113404 is a deficient number, since it is larger than the sum of its proper divisors (14902396).

19113404 is a wasteful number, since it uses less digits than its factorization.

19113404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81052 (or 81050 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 19113404 is about 4371.8879217107. The cubic root of 19113404 is about 267.3700023428.

Adding to 19113404 its reverse (40431191), we get a palindrome (59544595).

The spelling of 19113404 in words is "nineteen million, one hundred thirteen thousand, four hundred four".