22195404 has 192 divisors, whose sum is σ = 76446720. Its totient is φ = 5391360.

The previous prime is 22195403. The next prime is 22195447. The reversal of 22195404 is 40459122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22195403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 141294 + ... + 141450.

It is an arithmetic number, because the mean of its divisors is an integer number (398160).

Almost surely, 2^22195404 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 22195404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38223360).

22195404 is an abundant number, since it is smaller than the sum of its proper divisors (54251316).

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

22195404 is a wasteful number, since it uses less digits than its factorization.

22195404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 22195404 is about 4711.1998471727. The cubic root of 22195404 is about 281.0310794176.

The spelling of 22195404 in words is "twenty-two million, one hundred ninety-five thousand, four hundred four".