20723848 has 32 divisors (see below), whose sum is σ = 40691160. Its totient is φ = 9884160.

The previous prime is 20723827. The next prime is 20723849. The reversal of 20723848 is 84832702.

It can be written as a sum of positive squares in 4 ways, for example, as 19873764 + 850084 = 4458^2 + 922^2 .

It is not an unprimeable number, because it can be changed into a prime (20723849) 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, 15028 + ... + 16348.

Almost surely, 2^20723848 is an apocalyptic number.

It is an amenable number.

20723848 is a deficient number, since it is larger than the sum of its proper divisors (19967312).

20723848 is a wasteful number, since it uses less digits than its factorization.

20723848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 20723848 is about 4552.3453296076. The cubic root of 20723848 is about 274.6777404130.

The spelling of 20723848 in words is "twenty million, seven hundred twenty-three thousand, eight hundred forty-eight".