30288449 has 2 divisors, whose sum is σ = 30288450. Its totient is φ = 30288448.

The previous prime is 30288437. The next prime is 30288473. The reversal of 30288449 is 94488203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24850225 + 5438224 = 4985^2 + 2332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30288449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30288149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15144224 + 15144225.

It is an arithmetic number, because the mean of its divisors is an integer number (15144225).

Almost surely, 2^30288449 is an apocalyptic number.

It is an amenable number.

30288449 is a deficient number, since it is larger than the sum of its proper divisors (1).

30288449 is an equidigital number, since it uses as much as digits as its factorization.

30288449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 30288449 is about 5503.4942536538. The cubic root of 30288449 is about 311.7159403668.

The spelling of 30288449 in words is "thirty million, two hundred eighty-eight thousand, four hundred forty-nine".