20855298 has 8 divisors (see below), whose sum is σ = 41710608. Its totient is φ = 6951764.

The previous prime is 20855287. The next prime is 20855333. The reversal of 20855298 is 89255802.

It is a sphenic number, since it is the product of 3 distinct primes.

20855298 is an admirable number.

It is a Curzon 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, 1737936 + ... + 1737947.

It is an arithmetic number, because the mean of its divisors is an integer number (5213826).

Almost surely, 2^20855298 is an apocalyptic number.

20855298 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20855298 is a wasteful number, since it uses less digits than its factorization.

20855298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475888.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 20855298 is about 4566.7601206983. The cubic root of 20855298 is about 275.2572710855.

The spelling of 20855298 in words is "twenty million, eight hundred fifty-five thousand, two hundred ninety-eight".