30399969 has 8 divisors (see below), whose sum is σ = 40641760. Its totient is φ = 20212416.

The previous prime is 30399947. The next prime is 30399973. The reversal of 30399969 is 96999303.

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

It is not a de Polignac number, because 30399969 - 2⁵ = 30399937 is a prime.

It is a super-2 number, since 2×30399969² = 1848316230401922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30399269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12232 + ... + 14505.

It is an arithmetic number, because the mean of its divisors is an integer number (5080220).

Almost surely, 2^30399969 is an apocalyptic number.

It is an amenable number.

30399969 is a deficient number, since it is larger than the sum of its proper divisors (10241791).

30399969 is a wasteful number, since it uses less digits than its factorization.

30399969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27119.

The product of its (nonzero) digits is 354294, while the sum is 48.

The square root of 30399969 is about 5513.6166896149. The cubic root of 30399969 is about 312.0980440555.

The spelling of 30399969 in words is "thirty million, three hundred ninety-nine thousand, nine hundred sixty-nine".