22328 has 8 divisors (see below), whose sum is σ = 41880. Its totient is φ = 11160.

The previous prime is 22307. The next prime is 22343. The reversal of 22328 is 82322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×22328³ = 33394175494656, which contains 333 as substring.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (5235).

2²²³²⁸ is an apocalyptic number.

It is an amenable number.

22328 is a deficient number, since it is larger than the sum of its proper divisors (19552).

22328 is a wasteful number, since it uses less digits than its factorization.

22328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2793 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 22328 is about 149.4255667548. The cubic root of 22328 is about 28.1589598015.

It can be divided in two parts, 2 and 2328, that multiplied together give a triangular number (4656 = T₉₆).

The spelling of 22328 in words is "twenty-two thousand, three hundred twenty-eight".