20248768 has 56 divisors (see below), whose sum is σ = 43781472. Its totient is φ = 9252864.

The previous prime is 20248733. The next prime is 20248771. The reversal of 20248768 is 86784202.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 7 ways as a sum of consecutive naturals, for example, 40005 + ... + 40507.

It is an arithmetic number, because the mean of its divisors is an integer number (781812).

Almost surely, 2^20248768 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 20248768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21890736).

20248768 is an abundant number, since it is smaller than the sum of its proper divisors (23532704).

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

20248768 is a wasteful number, since it uses less digits than its factorization.

20248768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 20248768 is about 4499.8631090290. The cubic root of 20248768 is about 272.5625611767.

The spelling of 20248768 in words is "twenty million, two hundred forty-eight thousand, seven hundred sixty-eight".