22305404 has 12 divisors (see below), whose sum is σ = 42583128. Its totient is φ = 10138800.

The previous prime is 22305397. The next prime is 22305407. The reversal of 22305404 is 40450322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22305407) 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 3 ways as a sum of consecutive naturals, for example, 253427 + ... + 253514.

It is an arithmetic number, because the mean of its divisors is an integer number (3548594).

Almost surely, 2^22305404 is an apocalyptic number.

It is an amenable number.

22305404 is a deficient number, since it is larger than the sum of its proper divisors (20277724).

22305404 is a wasteful number, since it uses less digits than its factorization.

22305404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506956 (or 506954 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22305404 is about 4722.8597269028. The cubic root of 22305404 is about 281.4945761264.

Adding to 22305404 its reverse (40450322), we get a palindrome (62755726).

The spelling of 22305404 in words is "twenty-two million, three hundred five thousand, four hundred four".