20843248 has 20 divisors (see below), whose sum is σ = 40564368. Its totient is φ = 10375040.

The previous prime is 20843239. The next prime is 20843287. The reversal of 20843248 is 84234802.

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, 933 + ... + 6523.

Almost surely, 2^20843248 is an apocalyptic number.

It is an amenable number.

20843248 is a deficient number, since it is larger than the sum of its proper divisors (19721120).

20843248 is a wasteful number, since it uses less digits than its factorization.

20843248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832 (or 5826 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 20843248 is about 4565.4406140043. The cubic root of 20843248 is about 275.2042471627.

The spelling of 20843248 in words is "twenty million, eight hundred forty-three thousand, two hundred forty-eight".