11317428 has 48 divisors (see below), whose sum is σ = 30036160. Its totient is φ = 3683232.

The previous prime is 11317421. The next prime is 11317429. The reversal of 11317428 is 82471311.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11317421) by changing a digit.

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, 3426 + ... + 5862.

Almost surely, 2^11317428 is an apocalyptic number.

11317428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11317428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15018080).

11317428 is an abundant number, since it is smaller than the sum of its proper divisors (18718732).

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

11317428 is a wasteful number, since it uses less digits than its factorization.

11317428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493 (or 2485 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 11317428 is about 3364.1385227128. The cubic root of 11317428 is about 224.5170083823.

Adding to 11317428 its reverse (82471311), we get a palindrome (93788739).

The spelling of 11317428 in words is "eleven million, three hundred seventeen thousand, four hundred twenty-eight".