11428272 has 60 divisors (see below), whose sum is σ = 33674680. Its totient is φ = 3608064.

The previous prime is 11428271. The next prime is 11428273. The reversal of 11428272 is 27282411.

It is an interprime number because it is at equal distance from previous prime (11428271) and next prime (11428273).

It is not an unprimeable number, because it can be changed into a prime (11428271) 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 in 11 ways as a sum of consecutive naturals, for example, 648 + ... + 4824.

Almost surely, 2^11428272 is an apocalyptic number.

11428272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11428272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16837340).

11428272 is an abundant number, since it is smaller than the sum of its proper divisors (22246408).

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

11428272 is a wasteful number, since it uses less digits than its factorization.

11428272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210 (or 4201 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 11428272 is about 3380.5727325410. The cubic root of 11428272 is about 225.2476088919.

The spelling of 11428272 in words is "eleven million, four hundred twenty-eight thousand, two hundred seventy-two".