30530449 has 2 divisors, whose sum is σ = 30530450. Its totient is φ = 30530448.

The previous prime is 30530441. The next prime is 30530483. The reversal of 30530449 is 94403503.

30530449 = T₄₅₁₀ + T₄₅₁₁ + T₄₅₁₂.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 12552849 = 4240^2 + 3543^2 .

It is a cyclic number.

It is not a de Polignac number, because 30530449 - 2³ = 30530441 is a prime.

It is a super-2 number, since 2×30530449² = 1864216632283202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30530441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15265224 + 15265225.

It is an arithmetic number, because the mean of its divisors is an integer number (15265225).

Almost surely, 2^30530449 is an apocalyptic number.

30530449 is the 4512-nd centered triangular number.

It is an amenable number.

30530449 is a deficient number, since it is larger than the sum of its proper divisors (1).

30530449 is an equidigital number, since it uses as much as digits as its factorization.

30530449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 30530449 is about 5525.4365438398. The cubic root of 30530449 is about 312.5439264119.

The spelling of 30530449 in words is "thirty million, five hundred thirty thousand, four hundred forty-nine".