22181348 has 24 divisors (see below), whose sum is σ = 45202752. Its totient is φ = 9326304.

The previous prime is 22181347. The next prime is 22181363. The reversal of 22181348 is 84318122.

It is a self number, because there is not a number n which added to its sum of digits gives 22181348.

It is not an unprimeable number, because it can be changed into a prime (22181347) 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 7 ways as a sum of consecutive naturals, for example, 5990 + ... + 8957.

It is an arithmetic number, because the mean of its divisors is an integer number (1883448).

Almost surely, 2^22181348 is an apocalyptic number.

22181348 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22181348 is an abundant number, since it is smaller than the sum of its proper divisors (23021404).

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

22181348 is a wasteful number, since it uses less digits than its factorization.

22181348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15011 (or 15009 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 22181348 is about 4709.7078465654. The cubic root of 22181348 is about 280.9717427038.

The spelling of 22181348 in words is "twenty-two million, one hundred eighty-one thousand, three hundred forty-eight".