20884316 has 6 divisors (see below), whose sum is σ = 36547560. Its totient is φ = 10442156.

The previous prime is 20884307. The next prime is 20884327. The reversal of 20884316 is 61348802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610536 + ... + 2610543.

It is an arithmetic number, because the mean of its divisors is an integer number (6091260).

Almost surely, 2^20884316 is an apocalyptic number.

It is an amenable number.

20884316 is a deficient number, since it is larger than the sum of its proper divisors (15663244).

20884316 is a wasteful number, since it uses less digits than its factorization.

20884316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221083 (or 5221081 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20884316 is about 4569.9361045861. The cubic root of 20884316 is about 275.3848759720.

The spelling of 20884316 in words is "twenty million, eight hundred eighty-four thousand, three hundred sixteen".