22321243 has 8 divisors (see below), whose sum is σ = 25682400. Its totient is φ = 19003200.

The previous prime is 22321237. The next prime is 22321253. The reversal of 22321243 is 34212322.

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

It is a cyclic number.

It is not a de Polignac number, because 22321243 - 2¹³ = 22313051 is a prime.

It is a super-3 number, since 3×22321243³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22321243.

It is not an unprimeable number, because it can be changed into a prime (22321253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9658 + ... + 11743.

It is an arithmetic number, because the mean of its divisors is an integer number (3210300).

Almost surely, 2^22321243 is an apocalyptic number.

22321243 is a deficient number, since it is larger than the sum of its proper divisors (3361157).

22321243 is a wasteful number, since it uses less digits than its factorization.

22321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21557.

The product of its digits is 576, while the sum is 19.

The square root of 22321243 is about 4724.5362735405. The cubic root of 22321243 is about 281.5611898442.

Adding to 22321243 its reverse (34212322), we get a palindrome (56533565).

The spelling of 22321243 in words is "twenty-two million, three hundred twenty-one thousand, two hundred forty-three".