22409470 has 16 divisors (see below), whose sum is σ = 40415760. Its totient is φ = 8946304.

The previous prime is 22409461. The next prime is 22409473. The reversal of 22409470 is 7490422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22409473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4041 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (2525985).

Almost surely, 2^22409470 is an apocalyptic number.

22409470 is a deficient number, since it is larger than the sum of its proper divisors (18006290).

22409470 is a wasteful number, since it uses less digits than its factorization.

22409470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22409470 is about 4733.8641721114. The cubic root of 22409470 is about 281.9316686375.

Adding to 22409470 its reverse (7490422), we get a palindrome (29899892).

The spelling of 22409470 in words is "twenty-two million, four hundred nine thousand, four hundred seventy".