20030308 has 6 divisors (see below), whose sum is σ = 35053046. Its totient is φ = 10015152.

The previous prime is 20030299. The next prime is 20030327. The reversal of 20030308 is 80303002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18472804 + 1557504 = 4298^2 + 1248^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20030291 and 20030300.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2503785 + ... + 2503792.

Almost surely, 2^20030308 is an apocalyptic number.

It is an amenable number.

20030308 is a deficient number, since it is larger than the sum of its proper divisors (15022738).

20030308 is a wasteful number, since it uses less digits than its factorization.

20030308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007581 (or 5007579 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20030308 is about 4475.5232096371. The cubic root of 20030308 is about 271.5788067386.

The spelling of 20030308 in words is "twenty million, thirty thousand, three hundred eight".