20239248 has 60 divisors (see below), whose sum is σ = 55579280. Its totient is φ = 6345216.

The previous prime is 20239181. The next prime is 20239253. The reversal of 20239248 is 84293202.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13143 + ... + 14601.

Almost surely, 2^20239248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20239248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27789640).

20239248 is an abundant number, since it is smaller than the sum of its proper divisors (35340032).

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

20239248 is a wasteful number, since it uses less digits than its factorization.

20239248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20239248 is about 4498.8051747103. The cubic root of 20239248 is about 272.5198391975.

The spelling of 20239248 in words is "twenty million, two hundred thirty-nine thousand, two hundred forty-eight".