30508222 has 4 divisors (see below), whose sum is σ = 45762336. Its totient is φ = 15254110.

The previous prime is 30508211. The next prime is 30508241. The reversal of 30508222 is 22280503.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 30508193 and 30508202.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7627054 + ... + 7627057.

It is an arithmetic number, because the mean of its divisors is an integer number (11440584).

Almost surely, 2^30508222 is an apocalyptic number.

30508222 is a deficient number, since it is larger than the sum of its proper divisors (15254114).

30508222 is a wasteful number, since it uses less digits than its factorization.

30508222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15254113.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 30508222 is about 5523.4248433377. The cubic root of 30508222 is about 312.4680611625.

Adding to 30508222 its reverse (22280503), we get a palindrome (52788725).

It can be divided in two parts, 30508 and 222, that multiplied together give a palindrome (6772776).

The spelling of 30508222 in words is "thirty million, five hundred eight thousand, two hundred twenty-two".