30236449 has 2 divisors, whose sum is σ = 30236450. Its totient is φ = 30236448.

The previous prime is 30236441. The next prime is 30236483. The reversal of 30236449 is 94463203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28462225 + 1774224 = 5335^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 30236449 - 2³ = 30236441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30236449.

It is not a weakly prime, because it can be changed into another prime (30236441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15118224 + 15118225.

It is an arithmetic number, because the mean of its divisors is an integer number (15118225).

Almost surely, 2^30236449 is an apocalyptic number.

It is an amenable number.

30236449 is a deficient number, since it is larger than the sum of its proper divisors (1).

30236449 is an equidigital number, since it uses as much as digits as its factorization.

30236449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 30236449 is about 5498.7679529145. The cubic root of 30236449 is about 311.5374508278.

The spelling of 30236449 in words is "thirty million, two hundred thirty-six thousand, four hundred forty-nine".