30390330 has 32 divisors (see below), whose sum is σ = 73297728. Its totient is φ = 8064000.

The previous prime is 30390317. The next prime is 30390331. The reversal of 30390330 is 3309303.

It is a junction number, because it is equal to n+sod(n) for n = 30390297 and 30390306.

It is not an unprimeable number, because it can be changed into a prime (30390331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3930 + ... + 8730.

It is an arithmetic number, because the mean of its divisors is an integer number (2290554).

Almost surely, 2^30390330 is an apocalyptic number.

30390330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30390330 is an abundant number, since it is smaller than the sum of its proper divisors (42907398).

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

30390330 is a wasteful number, since it uses less digits than its factorization.

30390330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022.

The product of its (nonzero) digits is 729, while the sum is 21.

The square root of 30390330 is about 5512.7425116724. The cubic root of 30390330 is about 312.0650546463.

Adding to 30390330 its reverse (3309303), we get a palindrome (33699633).

The spelling of 30390330 in words is "thirty million, three hundred ninety thousand, three hundred thirty".