30223008 has 72 divisors (see below), whose sum is σ = 91017108. Its totient is φ = 9480192.

The previous prime is 30223001. The next prime is 30223009. The reversal of 30223008 is 80032203.

It can be written as a sum of positive squares in 2 ways, for example, as 29030544 + 1192464 = 5388^2 + 1092^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30223001) 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 11 ways as a sum of consecutive naturals, for example, 1810 + ... + 7982.

Almost surely, 2^30223008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30223008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45508554).

30223008 is an abundant number, since it is smaller than the sum of its proper divisors (60794100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30223008 is a wasteful number, since it uses less digits than its factorization.

30223008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206 (or 6195 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30223008 is about 5497.5456341899. The cubic root of 30223008 is about 311.4912814347.

The spelling of 30223008 in words is "thirty million, two hundred twenty-three thousand, eight".