20499848 has 16 divisors (see below), whose sum is σ = 38791500. Its totient is φ = 10155456.

The previous prime is 20499847. The next prime is 20499893. The reversal of 20499848 is 84899402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16957924 + 3541924 = 4118^2 + 1882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20499799 and 20499808.

It is not an unprimeable number, because it can be changed into a prime (20499847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10883 + ... + 12626.

Almost surely, 2^20499848 is an apocalyptic number.

It is an amenable number.

20499848 is a deficient number, since it is larger than the sum of its proper divisors (18291652).

20499848 is a wasteful number, since it uses less digits than its factorization.

20499848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23624 (or 23620 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 20499848 is about 4527.6757834456. The cubic root of 20499848 is about 273.6845073131.

The spelling of 20499848 in words is "twenty million, four hundred ninety-nine thousand, eight hundred forty-eight".