30218019 has 8 divisors (see below), whose sum is σ = 43390032. Its totient is φ = 18595680.

The previous prime is 30218017. The next prime is 30218033. The reversal of 30218019 is 91081203.

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

It is not a de Polignac number, because 30218019 - 2¹ = 30218017 is a prime.

It is a super-2 number, since 2×30218019² = 1826257344568722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30218019.

It is not an unprimeable number, because it can be changed into a prime (30218017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387372 + ... + 387449.

It is an arithmetic number, because the mean of its divisors is an integer number (5423754).

Almost surely, 2^30218019 is an apocalyptic number.

30218019 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

30218019 is a deficient number, since it is larger than the sum of its proper divisors (13172013).

30218019 is a wasteful number, since it uses less digits than its factorization.

30218019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774837.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 30218019 is about 5497.0918675241. The cubic root of 30218019 is about 311.4741409003.

The spelling of 30218019 in words is "thirty million, two hundred eighteen thousand, nineteen".