30299849 has 2 divisors, whose sum is σ = 30299850. Its totient is φ = 30299848.

The previous prime is 30299839. The next prime is 30299869. The reversal of 30299849 is 94899203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28249225 + 2050624 = 5315^2 + 1432^2 .

It is a cyclic number.

It is not a de Polignac number, because 30299849 - 2⁴ = 30299833 is a prime.

It is a super-3 number, since 3×30299849³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30299839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15149924 + 15149925.

It is an arithmetic number, because the mean of its divisors is an integer number (15149925).

Almost surely, 2^30299849 is an apocalyptic number.

It is an amenable number.

30299849 is a deficient number, since it is larger than the sum of its proper divisors (1).

30299849 is an equidigital number, since it uses as much as digits as its factorization.

30299849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 30299849 is about 5504.5298618501. The cubic root of 30299849 is about 311.7550434583.

The spelling of 30299849 in words is "thirty million, two hundred ninety-nine thousand, eight hundred forty-nine".