22889320 has 16 divisors (see below), whose sum is σ = 51501060. Its totient is φ = 9155712.

The previous prime is 22889311. The next prime is 22889351. The reversal of 22889320 is 2398822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21511044 + 1378276 = 4638^2 + 1174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286077 + ... + 286156.

Almost surely, 2^22889320 is an apocalyptic number.

22889320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22889320 is an abundant number, since it is smaller than the sum of its proper divisors (28611740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22889320 is a wasteful number, since it uses less digits than its factorization.

22889320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572244 (or 572240 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 22889320 is about 4784.2784199919. The cubic root of 22889320 is about 283.9297915453.

The spelling of 22889320 in words is "twenty-two million, eight hundred eighty-nine thousand, three hundred twenty".