22150660 has 96 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 6942720.

The previous prime is 22150591. The next prime is 22150691. The reversal of 22150660 is 6605122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97467 + ... + 97693.

It is an arithmetic number, because the mean of its divisors is an integer number (603288).

Almost surely, 2^22150660 is an apocalyptic number.

22150660 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 22150660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28957824).

22150660 is an abundant number, since it is smaller than the sum of its proper divisors (35764988).

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

22150660 is a wasteful number, since it uses less digits than its factorization.

22150660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 22150660 is about 4706.4487673829. The cubic root of 22150660 is about 280.8421076563.

Adding to 22150660 its reverse (6605122), we get a palindrome (28755782).

The spelling of 22150660 in words is "twenty-two million, one hundred fifty thousand, six hundred sixty".