22158248 has 32 divisors (see below), whose sum is σ = 48159360. Its totient is φ = 9360960.

The previous prime is 22158247. The next prime is 22158271. The reversal of 22158248 is 84285122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22158247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1190 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (1504980).

Almost surely, 2^22158248 is an apocalyptic number.

22158248 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 22158248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24079680).

22158248 is an abundant number, since it is smaller than the sum of its proper divisors (26001112).

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

22158248 is a wasteful number, since it uses less digits than its factorization.

22158248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657 (or 5653 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 22158248 is about 4707.2548263292. The cubic root of 22158248 is about 280.8741727148.

The spelling of 22158248 in words is "twenty-two million, one hundred fifty-eight thousand, two hundred forty-eight".