11428319 has 6 divisors (see below), whose sum is σ = 13294224. Its totient is φ = 9795660.

The previous prime is 11428297. The next prime is 11428331. The reversal of 11428319 is 91382411.

It is a de Polignac number, because none of the positive numbers 2^k-11428319 is a prime.

It is a super-2 number, since 2×11428319² = 261212950331522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11428291 and 11428300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11028319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116567 + ... + 116664.

It is an arithmetic number, because the mean of its divisors is an integer number (2215704).

Almost surely, 2^11428319 is an apocalyptic number.

11428319 is a deficient number, since it is larger than the sum of its proper divisors (1865905).

11428319 is an equidigital number, since it uses as much as digits as its factorization.

11428319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233245 (or 233238 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 11428319 is about 3380.5796840187. The cubic root of 11428319 is about 225.2479176765.

The spelling of 11428319 in words is "eleven million, four hundred twenty-eight thousand, three hundred nineteen".