22030866 has 96 divisors (see below), whose sum is σ = 58339008. Its totient is φ = 6143040.

The previous prime is 22030859. The next prime is 22030871. The reversal of 22030866 is 66803022.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69340 + ... + 69656.

It is an arithmetic number, because the mean of its divisors is an integer number (607698).

Almost surely, 2^22030866 is an apocalyptic number.

22030866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22030866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29169504).

22030866 is an abundant number, since it is smaller than the sum of its proper divisors (36308142).

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

22030866 is a wasteful number, since it uses less digits than its factorization.

22030866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 346 counting only the distinct ones).

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

The square root of 22030866 is about 4693.7049332058. The cubic root of 22030866 is about 280.3349138686.

Adding to 22030866 its reverse (66803022), we get a palindrome (88833888).

The spelling of 22030866 in words is "twenty-two million, thirty thousand, eight hundred sixty-six".