30390202 has 8 divisors (see below), whose sum is σ = 47157300. Its totient is φ = 14671104.

The previous prime is 30390187. The next prime is 30390229. The reversal of 30390202 is 20209303.

It can be written as a sum of positive squares in 2 ways, for example, as 30151081 + 239121 = 5491^2 + 489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30390202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261927 + ... + 262042.

Almost surely, 2^30390202 is an apocalyptic number.

30390202 is a deficient number, since it is larger than the sum of its proper divisors (16767098).

30390202 is a wasteful number, since it uses less digits than its factorization.

30390202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524000.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 30390202 is about 5512.7309021936. The cubic root of 30390202 is about 312.0646165203.

Adding to 30390202 its reverse (20209303), we get a palindrome (50599505).

The spelling of 30390202 in words is "thirty million, three hundred ninety thousand, two hundred two".