30328019 has 8 divisors (see below), whose sum is σ = 31438848. Its totient is φ = 29236680.

The previous prime is 30328003. The next prime is 30328027. The reversal of 30328019 is 91082303.

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 30328019 - 2⁴ = 30328003 is a prime.

It is a super-2 number, since 2×30328019² = 1839577472928722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30328219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1667 + ... + 7964.

It is an arithmetic number, because the mean of its divisors is an integer number (3929856).

Almost surely, 2^30328019 is an apocalyptic number.

30328019 is a deficient number, since it is larger than the sum of its proper divisors (1110829).

30328019 is an equidigital number, since it uses as much as digits as its factorization.

30328019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9745.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30328019 is about 5507.0880690252. The cubic root of 30328019 is about 311.8516272111.

The spelling of 30328019 in words is "thirty million, three hundred twenty-eight thousand, nineteen".