20842088 has 16 divisors (see below), whose sum is σ = 41136000. Its totient is φ = 9872496.

The previous prime is 20842049. The next prime is 20842093. The reversal of 20842088 is 88024802.

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, 68408 + ... + 68711.

It is an arithmetic number, because the mean of its divisors is an integer number (2571000).

Almost surely, 2^20842088 is an apocalyptic number.

It is an amenable number.

20842088 is a deficient number, since it is larger than the sum of its proper divisors (20293912).

20842088 is a wasteful number, since it uses less digits than its factorization.

20842088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137144 (or 137140 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 20842088 is about 4565.3135708295. The cubic root of 20842088 is about 275.1991417068.

The spelling of 20842088 in words is "twenty million, eight hundred forty-two thousand, eighty-eight".