22280330 has 32 divisors (see below), whose sum is σ = 42453504. Its totient is φ = 8401536.

The previous prime is 22280329. The next prime is 22280339. The reversal of 22280330 is 3308222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22280339) 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 15 ways as a sum of consecutive naturals, for example, 16127 + ... + 17453.

It is an arithmetic number, because the mean of its divisors is an integer number (1326672).

Almost surely, 2^22280330 is an apocalyptic number.

22280330 is a deficient number, since it is larger than the sum of its proper divisors (20173174).

22280330 is a wasteful number, since it uses less digits than its factorization.

22280330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 22280330 is about 4720.2044447248. The cubic root of 22280330 is about 281.3890584768.

Adding to 22280330 its reverse (3308222), we get a palindrome (25588552).

The spelling of 22280330 in words is "twenty-two million, two hundred eighty thousand, three hundred thirty".