30213309 has 8 divisors (see below), whose sum is σ = 46039360. Its totient is φ = 17264736.

The previous prime is 30213307. The next prime is 30213319. The reversal of 30213309 is 90331203.

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

It is not a de Polignac number, because 30213309 - 2¹ = 30213307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1438729 = 30213309 / (3 + 0 + 2 + 1 + 3 + 3 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213307) 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, 719344 + ... + 719385.

It is an arithmetic number, because the mean of its divisors is an integer number (5754920).

Almost surely, 2^30213309 is an apocalyptic number.

It is an amenable number.

30213309 is a deficient number, since it is larger than the sum of its proper divisors (15826051).

30213309 is a wasteful number, since it uses less digits than its factorization.

30213309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438739.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 30213309 is about 5496.6634424895. The cubic root of 30213309 is about 311.4579571852.

The spelling of 30213309 in words is "thirty million, two hundred thirteen thousand, three hundred nine".