11540428 has 6 divisors (see below), whose sum is σ = 20195756. Its totient is φ = 5770212.

The previous prime is 11540423. The next prime is 11540447. The reversal of 11540428 is 82404511.

It is not an unprimeable number, because it can be changed into a prime (11540423) 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 as a sum of consecutive naturals, namely, 1442550 + ... + 1442557.

Almost surely, 2^11540428 is an apocalyptic number.

It is an amenable number.

11540428 is a deficient number, since it is larger than the sum of its proper divisors (8655328).

11540428 is a wasteful number, since it uses less digits than its factorization.

11540428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885111 (or 2885109 counting only the distinct ones).

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

The square root of 11540428 is about 3397.1205454031. The cubic root of 11540428 is about 225.9820645176.

Adding to 11540428 its reverse (82404511), we get a palindrome (93944939).

The spelling of 11540428 in words is "eleven million, five hundred forty thousand, four hundred twenty-eight".