22393 has 6 divisors (see below), whose sum is σ = 26106. Its totient is φ = 19152.

The previous prime is 22391. The next prime is 22397. The reversal of 22393 is 39322.

It can be written as a sum of positive squares in only one way, i.e., 21609 + 784 = 147^2 + 28^2 .

It is not a de Polignac number, because 22393 - 2¹ = 22391 is a prime.

It is a d-powerful number, because it can be written as 2 + 2⁹ + 3⁷ + 9 + 3⁹ .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 22393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180 + ... + 277.

It is an arithmetic number, because the mean of its divisors is an integer number (4351).

2²²³⁹³ is an apocalyptic number.

It is an amenable number.

22393 is a deficient number, since it is larger than the sum of its proper divisors (3713).

22393 is an equidigital number, since it uses as much as digits as its factorization.

22393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 464 counting only the distinct ones).

The product of its digits is 324, while the sum is 19.

The square root of 22393 is about 149.6429082850. The cubic root of 22393 is about 28.1862582479.

It can be divided in two parts, 22 and 393, that multiplied together give a triangular number (8646 = T₁₃₁).

The spelling of 22393 in words is "twenty-two thousand, three hundred ninety-three".