20863848 has 32 divisors (see below), whose sum is σ = 52306560. Its totient is φ = 6935040.

The previous prime is 20863841. The next prime is 20863849. The reversal of 20863848 is 84836802.

It is not an unprimeable number, because it can be changed into a prime (20863841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9336 + ... + 11352.

It is an arithmetic number, because the mean of its divisors is an integer number (1634580).

Almost surely, 2^20863848 is an apocalyptic number.

It is an amenable number.

20863848 is an abundant number, since it is smaller than the sum of its proper divisors (31442712).

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

20863848 is a wasteful number, since it uses less digits than its factorization.

20863848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 20863848 is about 4567.6961370039. The cubic root of 20863848 is about 275.2948814828.

The spelling of 20863848 in words is "twenty million, eight hundred sixty-three thousand, eight hundred forty-eight".