20204012 has 12 divisors (see below), whose sum is σ = 35541576. Its totient is φ = 10049280.

The previous prime is 20204003. The next prime is 20204017. The reversal of 20204012 is 21040202.

It is a super-2 number, since 2×20204012² = 816404201792288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20203984 and 20204002.

It is not an unprimeable number, because it can be changed into a prime (20204017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12314 + ... + 13857.

It is an arithmetic number, because the mean of its divisors is an integer number (2961798).

Almost surely, 2^20204012 is an apocalyptic number.

It is an amenable number.

20204012 is a deficient number, since it is larger than the sum of its proper divisors (15337564).

20204012 is a wasteful number, since it uses less digits than its factorization.

20204012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26368 (or 26366 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20204012 is about 4494.8873178312. The cubic root of 20204012 is about 272.3615973659.

Adding to 20204012 its reverse (21040202), we get a palindrome (41244214).

The spelling of 20204012 in words is "twenty million, two hundred four thousand, twelve".