22160208 has 80 divisors (see below), whose sum is σ = 66174336. Its totient is φ = 6259200.

The previous prime is 22160153. The next prime is 22160209. The reversal of 22160208 is 80206122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22160209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33610 + ... + 34262.

Almost surely, 2^22160208 is an apocalyptic number.

22160208 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 22160208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33087168).

22160208 is an abundant number, since it is smaller than the sum of its proper divisors (44014128).

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

22160208 is a wasteful number, since it uses less digits than its factorization.

22160208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 22160208 is about 4707.4630110071. The cubic root of 22160208 is about 280.8824540125.

The spelling of 22160208 in words is "twenty-two million, one hundred sixty thousand, two hundred eight".