220030312 has 64 divisors (see below), whose sum is σ = 446054400. Its totient is φ = 101545920.

The previous prime is 220030289. The next prime is 220030367. The reversal of 220030312 is 213030022.

It is a happy number.

220030312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220030292 and 220030301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500989 + ... + 501427.

It is an arithmetic number, because the mean of its divisors is an integer number (6969600).

Almost surely, 2^220030312 is an apocalyptic number.

It is an amenable number.

220030312 is an abundant number, since it is smaller than the sum of its proper divisors (226024088).

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

220030312 is a wasteful number, since it uses less digits than its factorization.

220030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 220030312 is about 14833.4187563083. The cubic root of 220030312 is about 603.7087978318.

Adding to 220030312 its reverse (213030022), we get a palindrome (433060334).

The spelling of 220030312 in words is "two hundred twenty million, thirty thousand, three hundred twelve".