30205969 has 8 divisors (see below), whose sum is σ = 31833792. Its totient is φ = 28604400.

The previous prime is 30205963. The next prime is 30205999. The reversal of 30205969 is 96950203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30205969 - 2³ = 30205961 is a prime.

It is a super-2 number, since 2×30205969² = 1824801126457922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30205961) 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 in 7 ways as a sum of consecutive naturals, for example, 4179 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (3979224).

Almost surely, 2^30205969 is an apocalyptic number.

It is an amenable number.

30205969 is a deficient number, since it is larger than the sum of its proper divisors (1627823).

30205969 is a wasteful number, since it uses less digits than its factorization.

30205969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13127.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 30205969 is about 5495.9957241614. The cubic root of 30205969 is about 311.4327333503.

The spelling of 30205969 in words is "thirty million, two hundred five thousand, nine hundred sixty-nine".