30072349 has 2 divisors, whose sum is σ = 30072350. Its totient is φ = 30072348.

The previous prime is 30072323. The next prime is 30072389. The reversal of 30072349 is 94327003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18983449 + 11088900 = 4357^2 + 3330^2 .

It is a cyclic number.

It is not a de Polignac number, because 30072349 - 2¹¹ = 30070301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30072319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15036174 + 15036175.

It is an arithmetic number, because the mean of its divisors is an integer number (15036175).

Almost surely, 2^30072349 is an apocalyptic number.

It is an amenable number.

30072349 is a deficient number, since it is larger than the sum of its proper divisors (1).

30072349 is an equidigital number, since it uses as much as digits as its factorization.

30072349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 30072349 is about 5483.8261278053. The cubic root of 30072349 is about 310.9728335848.

It can be divided in two parts, 3007 and 2349, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 30072349 in words is "thirty million, seventy-two thousand, three hundred forty-nine".