30225320 has 32 divisors (see below), whose sum is σ = 72009000. Its totient is φ = 11378688.

The previous prime is 30225319. The next prime is 30225329. The reversal of 30225320 is 2352203.

It can be written as a sum of positive squares in 4 ways, for example, as 29833444 + 391876 = 5462^2 + 626^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (30225329) 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 7 ways as a sum of consecutive naturals, for example, 21545 + ... + 22904.

Almost surely, 2^30225320 is an apocalyptic number.

It is an amenable number.

30225320 is an abundant number, since it is smaller than the sum of its proper divisors (41783680).

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

30225320 is a wasteful number, since it uses less digits than its factorization.

30225320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44477 (or 44473 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 30225320 is about 5497.7559058219. The cubic root of 30225320 is about 311.4992240533.

Adding to 30225320 its reverse (2352203), we get a palindrome (32577523).

The spelling of 30225320 in words is "thirty million, two hundred twenty-five thousand, three hundred twenty".