22321652 has 12 divisors (see below), whose sum is σ = 39119556. Its totient is φ = 11144640.

The previous prime is 22321603. The next prime is 22321667. The reversal of 22321652 is 25612322.

It can be written as a sum of positive squares in 2 ways, for example, as 99856 + 22221796 = 316^2 + 4714^2 .

It is a super-3 number, since 3×22321652³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 623 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (3259963).

Almost surely, 2^22321652 is an apocalyptic number.

It is an amenable number.

22321652 is a deficient number, since it is larger than the sum of its proper divisors (16797904).

22321652 is a wasteful number, since it uses less digits than its factorization.

22321652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8098 (or 8096 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 22321652 is about 4724.5795580136. The cubic root of 22321652 is about 281.5629095487.

Adding to 22321652 its reverse (25612322), we get a palindrome (47933974).

The spelling of 22321652 in words is "twenty-two million, three hundred twenty-one thousand, six hundred fifty-two".