22201829 has 4 divisors (see below), whose sum is σ = 23909676. Its totient is φ = 20493984.

The previous prime is 22201819. The next prime is 22201867. The reversal of 22201829 is 92810222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4368100 + 17833729 = 2090^2 + 4223^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201829 - 2⁸ = 22201573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22201798 and 22201807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853904 + ... + 853929.

It is an arithmetic number, because the mean of its divisors is an integer number (5977419).

Almost surely, 2^22201829 is an apocalyptic number.

It is an amenable number.

22201829 is a deficient number, since it is larger than the sum of its proper divisors (1707847).

22201829 is a wasteful number, since it uses less digits than its factorization.

22201829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707846.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22201829 is about 4711.8816835740. The cubic root of 22201829 is about 281.0581938972.

The spelling of 22201829 in words is "twenty-two million, two hundred one thousand, eight hundred twenty-nine".