30372130 has 8 divisors (see below), whose sum is σ = 54669852. Its totient is φ = 12148848.

The previous prime is 30372119. The next prime is 30372131. The reversal of 30372130 is 3127303.

It can be written as a sum of positive squares in 2 ways, for example, as 28761769 + 1610361 = 5363^2 + 1269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30372098 and 30372107.

It is not an unprimeable number, because it can be changed into a prime (30372131) 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 3 ways as a sum of consecutive naturals, for example, 1518597 + ... + 1518616.

Almost surely, 2^30372130 is an apocalyptic number.

30372130 is a deficient number, since it is larger than the sum of its proper divisors (24297722).

30372130 is a wasteful number, since it uses less digits than its factorization.

30372130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037220.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 30372130 is about 5511.0915434240. The cubic root of 30372130 is about 312.0027462502.

Adding to 30372130 its reverse (3127303), we get a palindrome (33499433).

The spelling of 30372130 in words is "thirty million, three hundred seventy-two thousand, one hundred thirty".