22280923 has 16 divisors (see below), whose sum is σ = 26414080. Its totient is φ = 18398016.

The previous prime is 22280899. The next prime is 22280927. The reversal of 22280923 is 32908222.

It is not a de Polignac number, because 22280923 - 2⁹ = 22280411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22280891 and 22280900.

It is not an unprimeable number, because it can be changed into a prime (22280927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23311 + ... + 24247.

It is an arithmetic number, because the mean of its divisors is an integer number (1650880).

Almost surely, 2^22280923 is an apocalyptic number.

22280923 is a deficient number, since it is larger than the sum of its proper divisors (4133157).

22280923 is an equidigital number, since it uses as much as digits as its factorization.

22280923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22280923 is about 4720.2672593827. The cubic root of 22280923 is about 281.3915548825.

The spelling of 22280923 in words is "twenty-two million, two hundred eighty thousand, nine hundred twenty-three".