22288933 has 4 divisors (see below), whose sum is σ = 22328140. Its totient is φ = 22249728.

The previous prime is 22288927. The next prime is 22288939. The reversal of 22288933 is 33988222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33988222 = 2 ⋅16994111.

It is an interprime number because it is at equal distance from previous prime (22288927) and next prime (22288939).

It can be written as a sum of positive squares in 2 ways, for example, as 12061729 + 10227204 = 3473^2 + 3198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22288933 is a prime.

It is a super-3 number, since 3×22288933³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22288892 and 22288901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22288939) 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, 18738 + ... + 19891.

It is an arithmetic number, because the mean of its divisors is an integer number (5582035).

Almost surely, 2^22288933 is an apocalyptic number.

It is an amenable number.

22288933 is a deficient number, since it is larger than the sum of its proper divisors (39207).

22288933 is an equidigital number, since it uses as much as digits as its factorization.

22288933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39206.

The product of its digits is 41472, while the sum is 37.

The square root of 22288933 is about 4721.1156520467. The cubic root of 22288933 is about 281.4252709650.

The spelling of 22288933 in words is "twenty-two million, two hundred eighty-eight thousand, nine hundred thirty-three".