22660830 has 64 divisors (see below), whose sum is σ = 63996480. Its totient is φ = 5686272.

The previous prime is 22660811. The next prime is 22660837. The reversal of 22660830 is 3806622.

22660830 is a `hidden beast` number, since 2 + 26 + 608 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22660794 and 22660803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22660837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2122 + ... + 7058.

It is an arithmetic number, because the mean of its divisors is an integer number (999945).

Almost surely, 2^22660830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22660830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31998240).

22660830 is an abundant number, since it is smaller than the sum of its proper divisors (41335650).

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

22660830 is a wasteful number, since it uses less digits than its factorization.

22660830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970 (or 4964 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22660830 is about 4760.3392736233. The cubic root of 22660830 is about 282.9818648453.

The spelling of 22660830 in words is "twenty-two million, six hundred sixty thousand, eight hundred thirty".