30045220 has 24 divisors (see below), whose sum is σ = 64439424. Its totient is φ = 11762016.

The previous prime is 30045217. The next prime is 30045227. The reversal of 30045220 is 2254003.

It is a junction number, because it is equal to n+sod(n) for n = 30045194 and 30045203.

It is not an unprimeable number, because it can be changed into a prime (30045227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15042 + ... + 16921.

It is an arithmetic number, because the mean of its divisors is an integer number (2684976).

Almost surely, 2^30045220 is an apocalyptic number.

It is an amenable number.

30045220 is an abundant number, since it is smaller than the sum of its proper divisors (34394204).

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

30045220 is a wasteful number, since it uses less digits than its factorization.

30045220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32019 (or 32017 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30045220 is about 5481.3520229958. The cubic root of 30045220 is about 310.8792933898.

Adding to 30045220 its reverse (2254003), we get a palindrome (32299223).

The spelling of 30045220 in words is "thirty million, forty-five thousand, two hundred twenty".