22328385 has 8 divisors (see below), whose sum is σ = 35725440. Its totient is φ = 11908464.

The previous prime is 22328381. The next prime is 22328393. The reversal of 22328385 is 58382322.

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

It is not a de Polignac number, because 22328385 - 2² = 22328381 is a prime.

It is a super-3 number, since 3×22328385³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22328381) 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, 744265 + ... + 744294.

It is an arithmetic number, because the mean of its divisors is an integer number (4465680).

Almost surely, 2^22328385 is an apocalyptic number.

It is an amenable number.

22328385 is a deficient number, since it is larger than the sum of its proper divisors (13397055).

22328385 is a wasteful number, since it uses less digits than its factorization.

22328385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488567.

The product of its digits is 23040, while the sum is 33.

The square root of 22328385 is about 4725.2920544661. The cubic root of 22328385 is about 281.5912164812.

The spelling of 22328385 in words is "twenty-two million, three hundred twenty-eight thousand, three hundred eighty-five".