22321304 has 16 divisors (see below), whose sum is σ = 41914320. Its totient is φ = 11144160.

The previous prime is 22321297. The next prime is 22321319. The reversal of 22321304 is 40312322.

It is a super-3 number, since 3×22321304³ (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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5189 + ... + 8459.

It is an arithmetic number, because the mean of its divisors is an integer number (2619645).

Almost surely, 2^22321304 is an apocalyptic number.

It is an amenable number.

22321304 is a deficient number, since it is larger than the sum of its proper divisors (19593016).

22321304 is a wasteful number, since it uses less digits than its factorization.

22321304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130 (or 4126 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22321304 is about 4724.5427291961. The cubic root of 22321304 is about 281.5614463296.

Adding to 22321304 its reverse (40312322), we get a palindrome (62633626).

The spelling of 22321304 in words is "twenty-two million, three hundred twenty-one thousand, three hundred four".