20885246 has 8 divisors (see below), whose sum is σ = 31441800. Its totient is φ = 10404648.

The previous prime is 20885243. The next prime is 20885251. The reversal of 20885246 is 64258802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20885243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18296 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (3930225).

Almost surely, 2^20885246 is an apocalyptic number.

20885246 is a deficient number, since it is larger than the sum of its proper divisors (10556554).

20885246 is a wasteful number, since it uses less digits than its factorization.

20885246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37978.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 20885246 is about 4570.0378554231. The cubic root of 20885246 is about 275.3889636349.

The spelling of 20885246 in words is "twenty million, eight hundred eighty-five thousand, two hundred forty-six".