30232220 has 24 divisors (see below), whose sum is σ = 64360464. Its totient is φ = 11926656.

The previous prime is 30232193. The next prime is 30232231. The reversal of 30232220 is 2223203.

It is a super-2 number, since 2×30232220² = 1827974252256800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30232195 and 30232204.

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, 8894 + ... + 11813.

It is an arithmetic number, because the mean of its divisors is an integer number (2681686).

Almost surely, 2^30232220 is an apocalyptic number.

It is an amenable number.

30232220 is an abundant number, since it is smaller than the sum of its proper divisors (34128244).

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

30232220 is a wasteful number, since it uses less digits than its factorization.

30232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20789 (or 20787 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30232220 is about 5498.3833987819. The cubic root of 30232220 is about 311.5229258273.

Adding to 30232220 its reverse (2223203), we get a palindrome (32455423).

The spelling of 30232220 in words is "thirty million, two hundred thirty-two thousand, two hundred twenty".