30467220 has 144 divisors (see below), whose sum is σ = 101965248. Its totient is φ = 6773760.

The previous prime is 30467201. The next prime is 30467221. The reversal of 30467220 is 2276403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30467221) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 126300 + ... + 126540.

It is an arithmetic number, because the mean of its divisors is an integer number (708092).

Almost surely, 2^30467220 is an apocalyptic number.

30467220 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 30467220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50982624).

30467220 is an abundant number, since it is smaller than the sum of its proper divisors (71498028).

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

30467220 is a wasteful number, since it uses less digits than its factorization.

30467220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 30467220 is about 5519.7119490060. The cubic root of 30467220 is about 312.3280162998.

The spelling of 30467220 in words is "thirty million, four hundred sixty-seven thousand, two hundred twenty".