30042230 has 64 divisors (see below), whose sum is σ = 61585920. Its totient is φ = 10483200.

The previous prime is 30042223. The next prime is 30042239. The reversal of 30042230 is 3224003.

30042230 = 552² + 553² + ... + 636².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30042239) 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 31 ways as a sum of consecutive naturals, for example, 229265 + ... + 229395.

It is an arithmetic number, because the mean of its divisors is an integer number (962280).

Almost surely, 2^30042230 is an apocalyptic number.

30042230 is an abundant number, since it is smaller than the sum of its proper divisors (31543690).

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

30042230 is a wasteful number, since it uses less digits than its factorization.

30042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30042230 is about 5481.0792732819. The cubic root of 30042230 is about 310.8689804912.

Adding to 30042230 its reverse (3224003), we get a palindrome (33266233).

The spelling of 30042230 in words is "thirty million, forty-two thousand, two hundred thirty".