20030770 has 16 divisors (see below), whose sum is σ = 36321048. Its totient is φ = 7953280.

The previous prime is 20030761. The next prime is 20030771. The reversal of 20030770 is 7703002.

It can be written as a sum of positive squares in 4 ways, for example, as 9591409 + 10439361 = 3097^2 + 3231^2 .

It is not an unprimeable number, because it can be changed into a prime (20030771) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 5941 + ... + 8680.

Almost surely, 2^20030770 is an apocalyptic number.

20030770 is a deficient number, since it is larger than the sum of its proper divisors (16290278).

20030770 is a wasteful number, since it uses less digits than its factorization.

20030770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14765.

The product of its (nonzero) digits is 294, while the sum is 19.

The square root of 20030770 is about 4475.5748234165. The cubic root of 20030770 is about 271.5808947152.

Adding to 20030770 its reverse (7703002), we get a palindrome (27733772).

The spelling of 20030770 in words is "twenty million, thirty thousand, seven hundred seventy".