20800452 has 24 divisors (see below), whose sum is σ = 51389856. Its totient is φ = 6525568.

The previous prime is 20800427. The next prime is 20800471. The reversal of 20800452 is 25400802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50778 + ... + 51185.

It is an arithmetic number, because the mean of its divisors is an integer number (2141244).

Almost surely, 2^20800452 is an apocalyptic number.

It is an amenable number.

20800452 is an abundant number, since it is smaller than the sum of its proper divisors (30589404).

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

20800452 is a wasteful number, since it uses less digits than its factorization.

20800452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101987 (or 101985 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 20800452 is about 4560.7512539054. The cubic root of 20800452 is about 275.0157654873.

The spelling of 20800452 in words is "twenty million, eight hundred thousand, four hundred fifty-two".