20030504 has 16 divisors (see below), whose sum is σ = 40446420. Its totient is φ = 9244800.

The previous prime is 20030497. The next prime is 20030519. The reversal of 20030504 is 40503002.

It can be written as a sum of positive squares in 2 ways, for example, as 16826404 + 3204100 = 4102^2 + 1790^2 .

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, 96197 + ... + 96404.

Almost surely, 2^20030504 is an apocalyptic number.

It is an amenable number.

20030504 is an abundant number, since it is smaller than the sum of its proper divisors (20415916).

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

20030504 is a wasteful number, since it uses less digits than its factorization.

20030504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192620 (or 192616 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20030504 is about 4475.5451064647. The cubic root of 20030504 is about 271.5796925508.

Adding to 20030504 its reverse (40503002), we get a palindrome (60533506).

The spelling of 20030504 in words is "twenty million, thirty thousand, five hundred four".