30430225 has 18 divisors (see below), whose sum is σ = 43895814. Its totient is φ = 20865600.

The previous prime is 30430223. The next prime is 30430271. The reversal of 30430225 is 52203403.

It can be written as a sum of positive squares in 3 ways, for example, as 3969 + 30426256 = 63^2 + 5516^2 .

It is not a de Polignac number, because 30430225 - 2¹ = 30430223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30430223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11196 + ... + 13645.

Almost surely, 2^30430225 is an apocalyptic number.

30430225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30430225 is a deficient number, since it is larger than the sum of its proper divisors (13465589).

30430225 is a wasteful number, since it uses less digits than its factorization.

30430225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24865 (or 24853 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30430225 is about 5516.3597598416. The cubic root of 30430225 is about 312.2015497252.

Adding to 30430225 its reverse (52203403), we get a palindrome (82633628).

The spelling of 30430225 in words is "thirty million, four hundred thirty thousand, two hundred twenty-five".