11209272 has 32 divisors (see below), whose sum is σ = 28176000. Its totient is φ = 3716064.

The previous prime is 11209249. The next prime is 11209291. The reversal of 11209272 is 27290211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603 + ... + 5949.

It is an arithmetic number, because the mean of its divisors is an integer number (880500).

Almost surely, 2^11209272 is an apocalyptic number.

11209272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11209272 is an abundant number, since it is smaller than the sum of its proper divisors (16966728).

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

11209272 is a wasteful number, since it uses less digits than its factorization.

11209272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11209272 is about 3348.0250895117. The cubic root of 11209272 is about 223.7995123620.

Adding to 11209272 its reverse (27290211), we get a palindrome (38499483).

The spelling of 11209272 in words is "eleven million, two hundred nine thousand, two hundred seventy-two".