22030404 has 96 divisors (see below), whose sum is σ = 59222016. Its totient is φ = 6314880.

The previous prime is 22030399. The next prime is 22030409. The reversal of 22030404 is 40403022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22030399) and next prime (22030409).

It is not an unprimeable number, because it can be changed into a prime (22030409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328779 + ... + 328845.

It is an arithmetic number, because the mean of its divisors is an integer number (616896).

Almost surely, 2^22030404 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 22030404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29611008).

22030404 is an abundant number, since it is smaller than the sum of its proper divisors (37191612).

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

22030404 is a wasteful number, since it uses less digits than its factorization.

22030404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22030404 is about 4693.6557180944. The cubic root of 22030404 is about 280.3329542598.

Adding to 22030404 its reverse (40403022), we get a palindrome (62433426).

The spelling of 22030404 in words is "twenty-two million, thirty thousand, four hundred four".