22985280 has 168 divisors, whose sum is σ = 82734912. Its totient is φ = 5846016.

The previous prime is 22985239. The next prime is 22985323. The reversal of 22985280 is 8258922.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66067 + ... + 66413.

Almost surely, 2^22985280 is an apocalyptic number.

22985280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22985280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41367456).

22985280 is an abundant number, since it is smaller than the sum of its proper divisors (59749632).

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

22985280 is a wasteful number, since it uses less digits than its factorization.

22985280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 22985280 is about 4794.2966116001. The cubic root of 22985280 is about 284.3260158756.

The spelling of 22985280 in words is "twenty-two million, nine hundred eighty-five thousand, two hundred eighty".