20855382 has 8 divisors (see below), whose sum is σ = 41710776. Its totient is φ = 6951792.

The previous prime is 20855377. The next prime is 20855423. The reversal of 20855382 is 28355802.

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

20855382 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737943 + ... + 1737954.

It is an arithmetic number, because the mean of its divisors is an integer number (5213847).

Almost surely, 2^20855382 is an apocalyptic number.

20855382 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.

20855382 is a wasteful number, since it uses less digits than its factorization.

20855382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475902.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 20855382 is about 4566.7693175811. The cubic root of 20855382 is about 275.2576406412.

The spelling of 20855382 in words is "twenty million, eight hundred fifty-five thousand, three hundred eighty-two".