22109076 has 72 divisors (see below), whose sum is σ = 62969088. Its totient is φ = 6480000.

The previous prime is 22109069. The next prime is 22109077. The reversal of 22109076 is 67090122.

It is a super-2 number, since 2×22109076² = 977622483147552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11376 + ... + 13176.

Almost surely, 2^22109076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22109076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31484544).

22109076 is an abundant number, since it is smaller than the sum of its proper divisors (40860012).

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

22109076 is a wasteful number, since it uses less digits than its factorization.

22109076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 22109076 is about 4702.0289237732. The cubic root of 22109076 is about 280.6662535437. Note that the first 3 decimals are identical.

Adding to 22109076 its reverse (67090122), we get a palindrome (89199198).

The spelling of 22109076 in words is "twenty-two million, one hundred nine thousand, seventy-six".