30086220 has 48 divisors (see below), whose sum is σ = 85407840. Its totient is φ = 7911936.

The previous prime is 30086201. The next prime is 30086239. The reversal of 30086220 is 2268003.

It is an interprime number because it is at equal distance from previous prime (30086201) and next prime (30086239).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 946 + ... + 7814.

It is an arithmetic number, because the mean of its divisors is an integer number (1779330).

Almost surely, 2^30086220 is an apocalyptic number.

30086220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30086220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42703920).

30086220 is an abundant number, since it is smaller than the sum of its proper divisors (55321620).

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

30086220 is a wasteful number, since it uses less digits than its factorization.

30086220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6954 (or 6952 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30086220 is about 5485.0907011644. The cubic root of 30086220 is about 311.0206387533.

The spelling of 30086220 in words is "thirty million, eighty-six thousand, two hundred twenty".