11919198 has 16 divisors (see below), whose sum is σ = 24875136. Its totient is φ = 3800280.

The previous prime is 11919163. The next prime is 11919199. The reversal of 11919198 is 89191911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11919199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43048 + ... + 43323.

It is an arithmetic number, because the mean of its divisors is an integer number (1554696).

Almost surely, 2^11919198 is an apocalyptic number.

11919198 is an abundant number, since it is smaller than the sum of its proper divisors (12955938).

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

11919198 is a wasteful number, since it uses less digits than its factorization.

11919198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86399.

The product of its digits is 5832, while the sum is 39.

The square root of 11919198 is about 3452.4191518412. The cubic root of 11919198 is about 228.4278285894.

The spelling of 11919198 in words is "eleven million, nine hundred nineteen thousand, one hundred ninety-eight".