11328457 has 12 divisors (see below), whose sum is σ = 13461120. Its totient is φ = 9501576.

The previous prime is 11328451. The next prime is 11328461. The reversal of 11328457 is 75482311.

It is not a de Polignac number, because 11328457 - 2¹¹ = 11326409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11328451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157 + ... + 4762.

It is an arithmetic number, because the mean of its divisors is an integer number (1121760).

Almost surely, 2^11328457 is an apocalyptic number.

It is an amenable number.

11328457 is a deficient number, since it is larger than the sum of its proper divisors (2132663).

11328457 is an equidigital number, since it uses as much as digits as its factorization.

11328457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4980 (or 4973 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 11328457 is about 3365.7773247795. Note that the first 3 decimals coincide. The cubic root of 11328457 is about 224.5899164128.

The spelling of 11328457 in words is "eleven million, three hundred twenty-eight thousand, four hundred fifty-seven".