30411220 has 24 divisors (see below), whose sum is σ = 72987264. Its totient is φ = 10426656.

The previous prime is 30411197. The next prime is 30411247. The reversal of 30411220 is 2211403.

It is a self number, because there is not a number n which added to its sum of digits gives 30411220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108472 + ... + 108751.

It is an arithmetic number, because the mean of its divisors is an integer number (3041136).

Almost surely, 2^30411220 is an apocalyptic number.

It is an amenable number.

30411220 is an abundant number, since it is smaller than the sum of its proper divisors (42576044).

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

30411220 is a wasteful number, since it uses less digits than its factorization.

30411220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217239 (or 217237 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30411220 is about 5514.6368874115. The cubic root of 30411220 is about 312.1365417044.

Adding to 30411220 its reverse (2211403), we get a palindrome (32622623).

The spelling of 30411220 in words is "thirty million, four hundred eleven thousand, two hundred twenty".