303020018 has 24 divisors (see below), whose sum is σ = 556570800. Its totient is φ = 123029928.

The previous prime is 303020017. The next prime is 303020021. The reversal of 303020018 is 810020303.

It is a super-2 number, since 2×303020018² = 183642262617440648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 303019978 and 303020005.

It is not an unprimeable number, because it can be changed into a prime (303020017) 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 11 ways as a sum of consecutive naturals, for example, 79508 + ... + 83231.

It is an arithmetic number, because the mean of its divisors is an integer number (23190450).

Almost surely, 2^303020018 is an apocalyptic number.

303020018 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

303020018 is a deficient number, since it is larger than the sum of its proper divisors (253550782).

303020018 is a wasteful number, since it uses less digits than its factorization.

303020018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162774 (or 162767 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 303020018 is about 17407.4701780586. The cubic root of 303020018 is about 671.6717870609.

The spelling of 303020018 in words is "three hundred three million, twenty thousand, eighteen".