20030265 has 24 divisors (see below), whose sum is σ = 35293128. Its totient is φ = 10506240.

The previous prime is 20030261. The next prime is 20030273. The reversal of 20030265 is 56203002.

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 19954089 = 276^2 + 4467^2 .

It is not a de Polignac number, because 20030265 - 2² = 20030261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20030261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 904 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (1470547).

Almost surely, 2^20030265 is an apocalyptic number.

It is an amenable number.

20030265 is a deficient number, since it is larger than the sum of its proper divisors (15262863).

20030265 is a wasteful number, since it uses less digits than its factorization.

20030265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7369 (or 7366 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20030265 is about 4475.5184057269. The cubic root of 20030265 is about 271.5786124015.

Adding to 20030265 its reverse (56203002), we get a palindrome (76233267).

The spelling of 20030265 in words is "twenty million, thirty thousand, two hundred sixty-five".