20800612 has 24 divisors (see below), whose sum is σ = 42618240. Its totient is φ = 8696640.

The previous prime is 20800607. The next prime is 20800631. The reversal of 20800612 is 21600802.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20800612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7912 + ... + 10207.

It is an arithmetic number, because the mean of its divisors is an integer number (1775760).

Almost surely, 2^20800612 is an apocalyptic number.

It is an amenable number.

20800612 is an abundant number, since it is smaller than the sum of its proper divisors (21817628).

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

20800612 is a wasteful number, since it uses less digits than its factorization.

20800612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18171 (or 18169 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20800612 is about 4560.7687948415. The cubic root of 20800612 is about 275.0164706388.

It can be divided in two parts, 20800 and 612, that added together give a palindrome (21412).

The spelling of 20800612 in words is "twenty million, eight hundred thousand, six hundred twelve".