22601580 has 48 divisors (see below), whose sum is σ = 63700224. Its totient is φ = 5987520.

The previous prime is 22601569. The next prime is 22601581. The reversal of 22601580 is 8510622.

It is a self number, because there is not a number n which added to its sum of digits gives 22601580.

It is not an unprimeable number, because it can be changed into a prime (22601581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8625 + ... + 10935.

It is an arithmetic number, because the mean of its divisors is an integer number (1327088).

Almost surely, 2^22601580 is an apocalyptic number.

22601580 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 22601580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31850112).

22601580 is an abundant number, since it is smaller than the sum of its proper divisors (41098644).

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

22601580 is a wasteful number, since it uses less digits than its factorization.

22601580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2484 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 22601580 is about 4754.1119044465. Note that the first 3 decimals coincide. The cubic root of 22601580 is about 282.7350173156.

The spelling of 22601580 in words is "twenty-two million, six hundred one thousand, five hundred eighty".