19118008 has 32 divisors (see below), whose sum is σ = 44120160. Its totient is φ = 7562880.

The previous prime is 19117999. The next prime is 19118023. The reversal of 19118008 is 80081191.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12403 + ... + 13858.

It is an arithmetic number, because the mean of its divisors is an integer number (1378755).

Almost surely, 2^19118008 is an apocalyptic number.

It is an amenable number.

19118008 is an abundant number, since it is smaller than the sum of its proper divisors (25002152).

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

19118008 is a wasteful number, since it uses less digits than its factorization.

19118008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26287 (or 26283 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 19118008 is about 4372.4144359839. The cubic root of 19118008 is about 267.3914684767.

Adding to 19118008 its reverse (80081191), we get a palindrome (99199199).

The spelling of 19118008 in words is "nineteen million, one hundred eighteen thousand, eight".