30327220 has 96 divisors (see below), whose sum is σ = 81285120. Its totient is φ = 9229440.

The previous prime is 30327203. The next prime is 30327221. The reversal of 30327220 is 2272303.

30327220 = T₄₂₉ + T₄₃₀ + ... + T₆₃₈.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30327221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72171 + ... + 72589.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^30327220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30327220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40642560).

30327220 is an abundant number, since it is smaller than the sum of its proper divisors (50957900).

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

30327220 is a wasteful number, since it uses less digits than its factorization.

30327220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 30327220 is about 5507.0155256727. The cubic root of 30327220 is about 311.8488885814.

Adding to 30327220 its reverse (2272303), we get a palindrome (32599523).

The spelling of 30327220 in words is "thirty million, three hundred twenty-seven thousand, two hundred twenty".