30742213 has 8 divisors (see below), whose sum is σ = 31435040. Its totient is φ = 30056400.

The previous prime is 30742207. The next prime is 30742249. The reversal of 30742213 is 31224703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30742213 - 2⁵ = 30742181 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 (30772213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7663 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (3929380).

Almost surely, 2^30742213 is an apocalyptic number.

It is an amenable number.

30742213 is a deficient number, since it is larger than the sum of its proper divisors (692827).

30742213 is a wasteful number, since it uses less digits than its factorization.

30742213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 30742213 is about 5544.5660786034. The cubic root of 30742213 is about 313.2648800465.

Adding to 30742213 its reverse (31224703), we get a palindrome (61966916).

The spelling of 30742213 in words is "thirty million, seven hundred forty-two thousand, two hundred thirteen".