30343221 has 16 divisors (see below), whose sum is σ = 45312000. Its totient is φ = 20067264.

The previous prime is 30343211. The next prime is 30343231. The reversal of 30343221 is 12234303.

It is an interprime number because it is at equal distance from previous prime (30343211) and next prime (30343231).

It is not a de Polignac number, because 30343221 - 2⁹ = 30342709 is a prime.

It is a super-2 number, since 2×30343221² = 1841422121309682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30343194 and 30343203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343211) 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 15 ways as a sum of consecutive naturals, for example, 996 + ... + 7853.

It is an arithmetic number, because the mean of its divisors is an integer number (2832000).

Almost surely, 2^30343221 is an apocalyptic number.

It is an amenable number.

30343221 is a deficient number, since it is larger than the sum of its proper divisors (14968779).

30343221 is a wasteful number, since it uses less digits than its factorization.

30343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985 (or 8979 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30343221 is about 5508.4681173626. The cubic root of 30343221 is about 311.9037239927.

Adding to 30343221 its reverse (12234303), we get a palindrome (42577524).

The spelling of 30343221 in words is "thirty million, three hundred forty-three thousand, two hundred twenty-one".