22209348 has 72 divisors (see below), whose sum is σ = 61018272. Its totient is φ = 6268416.

The previous prime is 22209277. The next prime is 22209353. The reversal of 22209348 is 84390222.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 62740 + ... + 63092.

It is an arithmetic number, because the mean of its divisors is an integer number (847476).

Almost surely, 2^22209348 is an apocalyptic number.

22209348 is a gapful number since it is divisible by the number (28) 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 22209348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30509136).

22209348 is an abundant number, since it is smaller than the sum of its proper divisors (38808924).

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

22209348 is a wasteful number, since it uses less digits than its factorization.

22209348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 22209348 is about 4712.6794926029. The cubic root of 22209348 is about 281.0899185814.

The spelling of 22209348 in words is "twenty-two million, two hundred nine thousand, three hundred forty-eight".