11197944 has 96 divisors (see below), whose sum is σ = 32572800. Its totient is φ = 3467520.

The previous prime is 11197943. The next prime is 11197957. The reversal of 11197944 is 44979111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11197899 and 11197908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11197943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64642 + ... + 64814.

It is an arithmetic number, because the mean of its divisors is an integer number (339300).

Almost surely, 2^11197944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11197944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16286400).

11197944 is an abundant number, since it is smaller than the sum of its proper divisors (21374856).

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

11197944 is a wasteful number, since it uses less digits than its factorization.

11197944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 238 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 11197944 is about 3346.3329182853. The cubic root of 11197944 is about 223.7240969566.

The spelling of 11197944 in words is "eleven million, one hundred ninety-seven thousand, nine hundred forty-four".