22428927 has 16 divisors (see below), whose sum is σ = 34040160. Its totient is φ = 14587200.

The previous prime is 22428883. The next prime is 22428937. The reversal of 22428927 is 72982422.

It is a happy number.

It is not a de Polignac number, because 22428927 - 2⁷ = 22428799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22428891 and 22428900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22428937) 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, 9024 + ... + 11237.

It is an arithmetic number, because the mean of its divisors is an integer number (2127510).

Almost surely, 2^22428927 is an apocalyptic number.

22428927 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22428927 is a deficient number, since it is larger than the sum of its proper divisors (11611233).

22428927 is a wasteful number, since it uses less digits than its factorization.

22428927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20311 (or 20305 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22428927 is about 4735.9188126487. The cubic root of 22428927 is about 282.0132406640.

The spelling of 22428927 in words is "twenty-two million, four hundred twenty-eight thousand, nine hundred twenty-seven".