20080842 has 16 divisors (see below), whose sum is σ = 42524352. Its totient is φ = 6299840.

The previous prime is 20080813. The next prime is 20080849. The reversal of 20080842 is 24808002.

It is not an unprimeable number, because it can be changed into a prime (20080849) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 98334 + ... + 98537.

It is an arithmetic number, because the mean of its divisors is an integer number (2657772).

Almost surely, 2^20080842 is an apocalyptic number.

20080842 is an abundant number, since it is smaller than the sum of its proper divisors (22443510).

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

20080842 is a wasteful number, since it uses less digits than its factorization.

20080842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196893.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 20080842 is about 4481.1652502446. The cubic root of 20080842 is about 271.8070015702.

Adding to 20080842 its reverse (24808002), we get a palindrome (44888844).

The spelling of 20080842 in words is "twenty million, eighty thousand, eight hundred forty-two".