20886244 has 24 divisors (see below), whose sum is σ = 38696000. Its totient is φ = 9836640.

The previous prime is 20886223. The next prime is 20886259. The reversal of 20886244 is 44268802.

It is a super-3 number, since 3×20886244³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14434 + ... + 15814.

Almost surely, 2^20886244 is an apocalyptic number.

It is an amenable number.

20886244 is a deficient number, since it is larger than the sum of its proper divisors (17809756).

20886244 is a wasteful number, since it uses less digits than its factorization.

20886244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 20886244 is about 4570.1470435862. The cubic root of 20886244 is about 275.3933500457.

The spelling of 20886244 in words is "twenty million, eight hundred eighty-six thousand, two hundred forty-four".