22229405 has 16 divisors (see below), whose sum is σ = 29203200. Its totient is φ = 16109760.

The previous prime is 22229401. The next prime is 22229407. The reversal of 22229405 is 50492222.

It is not a de Polignac number, because 22229405 - 2² = 22229401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22229401) 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 15 ways as a sum of consecutive naturals, for example, 20876 + ... + 21914.

It is an arithmetic number, because the mean of its divisors is an integer number (1825200).

Almost surely, 2^22229405 is an apocalyptic number.

It is an amenable number.

22229405 is a deficient number, since it is larger than the sum of its proper divisors (6973795).

22229405 is a wasteful number, since it uses less digits than its factorization.

22229405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22229405 is about 4714.8069949893. The cubic root of 22229405 is about 281.1745094513.

The spelling of 22229405 in words is "twenty-two million, two hundred twenty-nine thousand, four hundred five".