30294018 has 48 divisors (see below), whose sum is σ = 69557280. Its totient is φ = 9502272.

The previous prime is 30294001. The next prime is 30294023. The reversal of 30294018 is 81049203.

It is a junction number, because it is equal to n+sod(n) for n = 30293982 and 30294000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96630 + ... + 96942.

It is an arithmetic number, because the mean of its divisors is an integer number (1449110).

Almost surely, 2^30294018 is an apocalyptic number.

30294018 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30294018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34778640).

30294018 is an abundant number, since it is smaller than the sum of its proper divisors (39263262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30294018 is a wasteful number, since it uses less digits than its factorization.

30294018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30294018 is about 5504.0001816860. Note that the first 3 decimals coincide. The cubic root of 30294018 is about 311.7350437956.

The spelling of 30294018 in words is "thirty million, two hundred ninety-four thousand, eighteen".