30018946 has 8 divisors (see below), whose sum is σ = 45052560. Its totient is φ = 15001428.

The previous prime is 30018931. The next prime is 30018971. The reversal of 30018946 is 64981003.

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

It is a super-2 number, since 2×30018946² = 1802274237901832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3325 + ... + 8431.

It is an arithmetic number, because the mean of its divisors is an integer number (5631570).

Almost surely, 2^30018946 is an apocalyptic number.

30018946 is a deficient number, since it is larger than the sum of its proper divisors (15033614).

30018946 is a wasteful number, since it uses less digits than its factorization.

30018946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8048.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30018946 is about 5478.9548273371. The cubic root of 30018946 is about 310.7886475273.

Adding to 30018946 its reverse (64981003), we get a palindrome (94999949).

The spelling of 30018946 in words is "thirty million, eighteen thousand, nine hundred forty-six".