22888540 has 96 divisors (see below), whose sum is σ = 54835200. Its totient is φ = 7983360.

The previous prime is 22888531. The next prime is 22888561. The reversal of 22888540 is 4588822.

It is a self number, because there is not a number n which added to its sum of digits gives 22888540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341587 + ... + 341653.

It is an arithmetic number, because the mean of its divisors is an integer number (571200).

Almost surely, 2^22888540 is an apocalyptic number.

22888540 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 22888540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27417600).

22888540 is an abundant number, since it is smaller than the sum of its proper divisors (31946660).

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

22888540 is a wasteful number, since it uses less digits than its factorization.

22888540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 22888540 is about 4784.1969023024. The cubic root of 22888540 is about 283.9265663476.

The spelling of 22888540 in words is "twenty-two million, eight hundred eighty-eight thousand, five hundred forty".