22430430 has 96 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 5365440.

The previous prime is 22430423. The next prime is 22430437. The reversal of 22430430 is 3403422.

22430430 = T₄₄₁ + T₄₄₂ + ... + T₆₀₃.

It is an interprime number because it is at equal distance from previous prime (22430423) and next prime (22430437).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22430437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137529 + ... + 137691.

It is an arithmetic number, because the mean of its divisors is an integer number (671580).

Almost surely, 2^22430430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22430430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32235840).

22430430 is an abundant number, since it is smaller than the sum of its proper divisors (42041250).

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

22430430 is a wasteful number, since it uses less digits than its factorization.

22430430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22430430 is about 4736.0774909201. The cubic root of 22430430 is about 282.0195399166.

Adding to 22430430 its reverse (3403422), we get a palindrome (25833852).

The spelling of 22430430 in words is "twenty-two million, four hundred thirty thousand, four hundred thirty".