30200320 has 80 divisors (see below), whose sum is σ = 74245248. Its totient is φ = 11776000.

The previous prime is 30200309. The next prime is 30200323. The reversal of 30200320 is 2300203.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 30200297 and 30200306.

It is not an unprimeable number, because it can be changed into a prime (30200323) 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, 120195 + ... + 120445.

Almost surely, 2^30200320 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 30200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37122624).

30200320 is an abundant number, since it is smaller than the sum of its proper divisors (44044928).

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

30200320 is an equidigital number, since it uses as much as digits as its factorization.

30200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 305 counting only the distinct ones).

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

The square root of 30200320 is about 5495.4817805175. The cubic root of 30200320 is about 311.4133178368.

Adding to 30200320 its reverse (2300203), we get a palindrome (32500523).

The spelling of 30200320 in words is "thirty million, two hundred thousand, three hundred twenty".