30230020 has 24 divisors (see below), whose sum is σ = 63857304. Its totient is φ = 12020736.

The previous prime is 30230017. The next prime is 30230021. The reversal of 30230020 is 2003203.

It can be written as a sum of positive squares in 4 ways, for example, as 6959044 + 23270976 = 2638^2 + 4824^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30229979 and 30230006.

It is not an unprimeable number, because it can be changed into a prime (30230021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909 + ... + 7828.

It is an arithmetic number, because the mean of its divisors is an integer number (2660721).

Almost surely, 2^30230020 is an apocalyptic number.

It is an amenable number.

30230020 is an abundant number, since it is smaller than the sum of its proper divisors (33627284).

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

30230020 is a wasteful number, since it uses less digits than its factorization.

30230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8919 (or 8917 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 30230020 is about 5498.1833363394. The cubic root of 30230020 is about 311.5153691316.

Adding to 30230020 its reverse (2003203), we get a palindrome (32233223).

The spelling of 30230020 in words is "thirty million, two hundred thirty thousand, twenty".