20854316 has 24 divisors (see below), whose sum is σ = 42097440. Its totient is φ = 8854272.

The previous prime is 20854313. The next prime is 20854319. The reversal of 20854316 is 61345802.

It is an interprime number because it is at equal distance from previous prime (20854313) and next prime (20854319).

It is not an unprimeable number, because it can be changed into a prime (20854313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365 + ... + 6468.

It is an arithmetic number, because the mean of its divisors is an integer number (1754060).

Almost surely, 2^20854316 is an apocalyptic number.

It is an amenable number.

20854316 is an abundant number, since it is smaller than the sum of its proper divisors (21243124).

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

20854316 is a wasteful number, since it uses less digits than its factorization.

20854316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953 (or 6951 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20854316 is about 4566.6526033847. The cubic root of 20854316 is about 275.2529507304.

The spelling of 20854316 in words is "twenty million, eight hundred fifty-four thousand, three hundred sixteen".