11747428 has 48 divisors (see below), whose sum is σ = 26256384. Its totient is φ = 4465440.

The previous prime is 11747413. The next prime is 11747429. The reversal of 11747428 is 82474711.

It is a junction number, because it is equal to n+sod(n) for n = 11747393 and 11747402.

It is not an unprimeable number, because it can be changed into a prime (11747429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12801 + ... + 13687.

It is an arithmetic number, because the mean of its divisors is an integer number (547008).

Almost surely, 2^11747428 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 11747428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13128192).

11747428 is an abundant number, since it is smaller than the sum of its proper divisors (14508956).

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

11747428 is a wasteful number, since it uses less digits than its factorization.

11747428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 950 counting only the distinct ones).

The product of its digits is 12544, while the sum is 34.

The square root of 11747428 is about 3427.4521149098. The cubic root of 11747428 is about 227.3252080889.

The spelling of 11747428 in words is "eleven million, seven hundred forty-seven thousand, four hundred twenty-eight".