11272578 has 16 divisors (see below), whose sum is σ = 22601376. Its totient is φ = 3748160.

The previous prime is 11272577. The next prime is 11272601. The reversal of 11272578 is 87527211.

It is not an unprimeable number, because it can be changed into a prime (11272577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538 + ... + 4778.

It is an arithmetic number, because the mean of its divisors is an integer number (1412586).

Almost surely, 2^11272578 is an apocalyptic number.

11272578 is an abundant number, since it is smaller than the sum of its proper divisors (11328798).

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

11272578 is a wasteful number, since it uses less digits than its factorization.

11272578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689.

The product of its digits is 7840, while the sum is 33.

The square root of 11272578 is about 3357.4660087632. The cubic root of 11272578 is about 224.2200351705.

Adding to 11272578 its reverse (87527211), we get a palindrome (98799789).

The spelling of 11272578 in words is "eleven million, two hundred seventy-two thousand, five hundred seventy-eight".