22472306 has 8 divisors (see below), whose sum is σ = 33736284. Its totient is φ = 11226880.

The previous prime is 22472291. The next prime is 22472309. The reversal of 22472306 is 60327422.

It can be written as a sum of positive squares in 2 ways, for example, as 22231225 + 241081 = 4715^2 + 491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22472309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055 + ... + 6786.

Almost surely, 2^22472306 is an apocalyptic number.

22472306 is a deficient number, since it is larger than the sum of its proper divisors (11263978).

22472306 is a wasteful number, since it uses less digits than its factorization.

22472306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22472306 is about 4740.4963875105. The cubic root of 22472306 is about 282.1949342133.

Adding to 22472306 its reverse (60327422), we get a palindrome (82799728).

The spelling of 22472306 in words is "twenty-two million, four hundred seventy-two thousand, three hundred six".