11198940 has 24 divisors (see below), whose sum is σ = 31357200. Its totient is φ = 2986368.

The previous prime is 11198939. The next prime is 11198951. The reversal of 11198940 is 4989111.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 93265 + ... + 93384.

It is an arithmetic number, because the mean of its divisors is an integer number (1306550).

Almost surely, 2^11198940 is an apocalyptic number.

11198940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11198940 is an abundant number, since it is smaller than the sum of its proper divisors (20158260).

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

11198940 is a wasteful number, since it uses less digits than its factorization.

11198940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186661 (or 186659 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 11198940 is about 3346.4817345983. The cubic root of 11198940 is about 223.7307297991.

The spelling of 11198940 in words is "eleven million, one hundred ninety-eight thousand, nine hundred forty".