22308672 has 28 divisors (see below), whose sum is σ = 59025536. Its totient is φ = 7436160.

The previous prime is 22308659. The next prime is 22308673. The reversal of 22308672 is 27680322.

It is a super-3 number, since 3×22308672³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22308673) 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, 57904 + ... + 58287.

Almost surely, 2^22308672 is an apocalyptic number.

It is an amenable number.

22308672 is an abundant number, since it is smaller than the sum of its proper divisors (36716864).

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

22308672 is a wasteful number, since it uses less digits than its factorization.

22308672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116206 (or 116196 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22308672 is about 4723.2056910535. The cubic root of 22308672 is about 281.5083228602.

Adding to 22308672 its reverse (27680322), we get a palindrome (49988994).

The spelling of 22308672 in words is "twenty-two million, three hundred eight thousand, six hundred seventy-two".