20200492 has 12 divisors (see below), whose sum is σ = 38070256. Its totient is φ = 9323280.

The previous prime is 20200441. The next prime is 20200511. The reversal of 20200492 is 29400202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194184 + ... + 194287.

Almost surely, 2^20200492 is an apocalyptic number.

It is an amenable number.

20200492 is a deficient number, since it is larger than the sum of its proper divisors (17869764).

20200492 is a wasteful number, since it uses less digits than its factorization.

20200492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388488 (or 388486 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20200492 is about 4494.4957447972. The cubic root of 20200492 is about 272.3457792451.

Adding to 20200492 its reverse (29400202), we get a palindrome (49600694).

The spelling of 20200492 in words is "twenty million, two hundred thousand, four hundred ninety-two".