20200512 has 28 divisors (see below), whose sum is σ = 53447696. Its totient is φ = 6733440.

The previous prime is 20200511. The next prime is 20200529. The reversal of 20200512 is 21500202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20200511) 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, 52414 + ... + 52797.

Almost surely, 2^20200512 is an apocalyptic number.

It is an amenable number.

20200512 is an abundant number, since it is smaller than the sum of its proper divisors (33247184).

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

20200512 is a wasteful number, since it uses less digits than its factorization.

20200512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105226 (or 105216 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20200512 is about 4494.4979697403. The cubic root of 20200512 is about 272.3458691260.

Adding to 20200512 its reverse (21500202), we get a palindrome (41700714).

The spelling of 20200512 in words is "twenty million, two hundred thousand, five hundred twelve".