11504428 has 12 divisors (see below), whose sum is σ = 21681520. Its totient is φ = 5309712.

The previous prime is 11504419. The next prime is 11504429. The reversal of 11504428 is 82440511.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11504429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 110568 + ... + 110671.

Almost surely, 2^11504428 is an apocalyptic number.

It is an amenable number.

11504428 is a deficient number, since it is larger than the sum of its proper divisors (10177092).

11504428 is a wasteful number, since it uses less digits than its factorization.

11504428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221256 (or 221254 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 11504428 is about 3391.8178017105. The cubic root of 11504428 is about 225.7468384544.

Adding to 11504428 its reverse (82440511), we get a palindrome (93944939).

The spelling of 11504428 in words is "eleven million, five hundred four thousand, four hundred twenty-eight".