22320430 has 32 divisors (see below), whose sum is σ = 45347040. Its totient is φ = 7835520.

The previous prime is 22320391. The next prime is 22320433. The reversal of 22320430 is 3402322.

It is a super-3 number, since 3×22320430³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22320433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (1417095).

Almost surely, 2^22320430 is an apocalyptic number.

22320430 is an abundant number, since it is smaller than the sum of its proper divisors (23026610).

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

22320430 is a wasteful number, since it uses less digits than its factorization.

22320430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22320430 is about 4724.4502325667. The cubic root of 22320430 is about 281.5577713962.

Adding to 22320430 its reverse (3402322), we get a palindrome (25722752).

The spelling of 22320430 in words is "twenty-two million, three hundred twenty thousand, four hundred thirty".