30227389 has 4 divisors (see below), whose sum is σ = 30240540. Its totient is φ = 30214240.

The previous prime is 30227383. The next prime is 30227399. The reversal of 30227389 is 98372203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6461764 + 23765625 = 2542^2 + 4875^2 .

It is a cyclic number.

It is not a de Polignac number, because 30227389 - 2⁹ = 30226877 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 (30227383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2122 + ... + 8059.

It is an arithmetic number, because the mean of its divisors is an integer number (7560135).

Almost surely, 2^30227389 is an apocalyptic number.

It is an amenable number.

30227389 is a deficient number, since it is larger than the sum of its proper divisors (13151).

30227389 is a wasteful number, since it uses less digits than its factorization.

30227389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30227389 is about 5497.9440702866. The cubic root of 30227389 is about 311.5063315291.

The spelling of 30227389 in words is "thirty million, two hundred twenty-seven thousand, three hundred eighty-nine".