11397144 has 64 divisors (see below), whose sum is σ = 32451840. Its totient is φ = 3301760.

The previous prime is 11397103. The next prime is 11397163. The reversal of 11397144 is 44179311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5134 + ... + 7010.

It is an arithmetic number, because the mean of its divisors is an integer number (507060).

Almost surely, 2^11397144 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 11397144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16225920).

11397144 is an abundant number, since it is smaller than the sum of its proper divisors (21054696).

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

11397144 is a wasteful number, since it uses less digits than its factorization.

11397144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1916 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 11397144 is about 3375.9656396356. The cubic root of 11397144 is about 225.0429152708.

The spelling of 11397144 in words is "eleven million, three hundred ninety-seven thousand, one hundred forty-four".