22231672 has 64 divisors (see below), whose sum is σ = 46512000. Its totient is φ = 9922176.

The previous prime is 22231667. The next prime is 22231673. The reversal of 22231672 is 27613222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231673) 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, 331783 + ... + 331849.

It is an arithmetic number, because the mean of its divisors is an integer number (726750).

Almost surely, 2^22231672 is an apocalyptic number.

It is an amenable number.

22231672 is an abundant number, since it is smaller than the sum of its proper divisors (24280328).

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

22231672 is a wasteful number, since it uses less digits than its factorization.

22231672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 184 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 22231672 is about 4715.0474016705. The cubic root of 22231672 is about 281.1840673761.

Adding to 22231672 its reverse (27613222), we get a palindrome (49844894).

The spelling of 22231672 in words is "twenty-two million, two hundred thirty-one thousand, six hundred seventy-two".