22248539 has 8 divisors (see below), whose sum is σ = 23079360. Its totient is φ = 21422016.

The previous prime is 22248511. The next prime is 22248557. The reversal of 22248539 is 93584222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22248539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22248499 and 22248508.

It is not an unprimeable number, because it can be changed into a prime (22248509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12599 + ... + 14255.

It is an arithmetic number, because the mean of its divisors is an integer number (2884920).

Almost surely, 2^22248539 is an apocalyptic number.

22248539 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22248539 is a deficient number, since it is larger than the sum of its proper divisors (830821).

22248539 is a wasteful number, since it uses less digits than its factorization.

22248539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149.

The product of its digits is 34560, while the sum is 35.

The square root of 22248539 is about 4716.8356977957. The cubic root of 22248539 is about 281.2551601358.

The spelling of 22248539 in words is "twenty-two million, two hundred forty-eight thousand, five hundred thirty-nine".