30022019 has 4 divisors (see below), whose sum is σ = 30033696. Its totient is φ = 30010344.

The previous prime is 30022007. The next prime is 30022067. The reversal of 30022019 is 91022003.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 91022003 = 199 ⋅457397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30022019 is a prime.

It is a super-2 number, since 2×30022019² = 1802643249672722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30021988 and 30022006.

It is not an unprimeable number, because it can be changed into a prime (30022819) 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 3 ways as a sum of consecutive naturals, for example, 104 + ... + 7749.

It is an arithmetic number, because the mean of its divisors is an integer number (7508424).

Almost surely, 2^30022019 is an apocalyptic number.

30022019 is a deficient number, since it is larger than the sum of its proper divisors (11677).

30022019 is an equidigital number, since it uses as much as digits as its factorization.

30022019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11676.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 30022019 is about 5479.2352568584. The cubic root of 30022019 is about 310.7992521737.

The spelling of 30022019 in words is "thirty million, twenty-two thousand, nineteen".