20496896 has 120 divisors (see below), whose sum is σ = 51313680. Its totient is φ = 8128512.

The previous prime is 20496863. The next prime is 20496899. The reversal of 20496896 is 69869402.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 20496896 = 72³ + 272³ = 128³ + 264³.

It is not an unprimeable number, because it can be changed into a prime (20496899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476651 + ... + 476693.

It is an arithmetic number, because the mean of its divisors is an integer number (427614).

Almost surely, 2^20496896 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 20496896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25656840).

20496896 is an abundant number, since it is smaller than the sum of its proper divisors (30816784).

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

20496896 is an equidigital number, since it uses as much as digits as its factorization.

20496896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 20496896 is about 4527.3497766353. The cubic root of 20496896 is about 273.6713697287.

The spelling of 20496896 in words is "twenty million, four hundred ninety-six thousand, eight hundred ninety-six".