22166430 has 64 divisors (see below), whose sum is σ = 62512128. Its totient is φ = 4959360.

The previous prime is 22166383. The next prime is 22166447. The reversal of 22166430 is 3466122.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22166430.

It is a congruent number.

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, 1707 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (976752).

Almost surely, 2^22166430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22166430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31256064).

22166430 is an abundant number, since it is smaller than the sum of its proper divisors (40345698).

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

22166430 is a wasteful number, since it uses less digits than its factorization.

22166430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 22166430 is about 4708.1238301472. The cubic root of 22166430 is about 280.9087396727.

It can be divided in two parts, 2216 and 6430, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 22166430 in words is "twenty-two million, one hundred sixty-six thousand, four hundred thirty".