30572449 has 2 divisors, whose sum is σ = 30572450. Its totient is φ = 30572448.

The previous prime is 30572413. The next prime is 30572483. The reversal of 30572449 is 94427503.

It is an a-pointer prime, because the next prime (30572483) can be obtained adding 30572449 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27112849 + 3459600 = 5207^2 + 1860^2 .

It is a cyclic number.

It is not a de Polignac number, because 30572449 - 2²³ = 22183841 is a prime.

It is not a weakly prime, because it can be changed into another prime (30572849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15286224 + 15286225.

It is an arithmetic number, because the mean of its divisors is an integer number (15286225).

Almost surely, 2^30572449 is an apocalyptic number.

It is an amenable number.

30572449 is a deficient number, since it is larger than the sum of its proper divisors (1).

30572449 is an equidigital number, since it uses as much as digits as its factorization.

30572449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 30572449 is about 5529.2358423203. The cubic root of 30572449 is about 312.6871804474.

The spelling of 30572449 in words is "thirty million, five hundred seventy-two thousand, four hundred forty-nine".