30032213 has 4 divisors (see below), whose sum is σ = 30764748. Its totient is φ = 29299680.

The previous prime is 30032209. The next prime is 30032237. The reversal of 30032213 is 31223003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31223003 = 7 ⋅4460429.

It can be written as a sum of positive squares in 2 ways, for example, as 3179089 + 26853124 = 1783^2 + 5182^2 .

It is a cyclic number.

It is not a de Polignac number, because 30032213 - 2² = 30032209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032203) 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 3 ways as a sum of consecutive naturals, for example, 366206 + ... + 366287.

It is an arithmetic number, because the mean of its divisors is an integer number (7691187).

Almost surely, 2^30032213 is an apocalyptic number.

It is an amenable number.

30032213 is a deficient number, since it is larger than the sum of its proper divisors (732535).

30032213 is an equidigital number, since it uses as much as digits as its factorization.

30032213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732534.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 30032213 is about 5480.1654172114. The cubic root of 30032213 is about 310.8344255692.

Adding to 30032213 its reverse (31223003), we get a palindrome (61255216).

The spelling of 30032213 in words is "thirty million, thirty-two thousand, two hundred thirteen".