11272724 has 6 divisors (see below), whose sum is σ = 19727274. Its totient is φ = 5636360.

The previous prime is 11272721. The next prime is 11272759. The reversal of 11272724 is 42727211.

It can be written as a sum of positive squares in only one way, i.e., 10679824 + 592900 = 3268^2 + 770^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11272693 and 11272702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272721) 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 as a sum of consecutive naturals, namely, 1409087 + ... + 1409094.

It is an arithmetic number, because the mean of its divisors is an integer number (3287879).

Almost surely, 2^11272724 is an apocalyptic number.

It is an amenable number.

11272724 is a deficient number, since it is larger than the sum of its proper divisors (8454550).

11272724 is a wasteful number, since it uses less digits than its factorization.

11272724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818185 (or 2818183 counting only the distinct ones).

The product of its digits is 1568, while the sum is 26.

The square root of 11272724 is about 3357.4877512807. The cubic root of 11272724 is about 224.2210031829.

Adding to 11272724 its reverse (42727211), we get a palindrome (53999935).

The spelling of 11272724 in words is "eleven million, two hundred seventy-two thousand, seven hundred twenty-four".