20568496 has 20 divisors (see below), whose sum is σ = 42917392. Its totient is φ = 9493056.

The previous prime is 20568461. The next prime is 20568497. The reversal of 20568496 is 69486502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20568497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49236 + ... + 49651.

Almost surely, 2^20568496 is an apocalyptic number.

20568496 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20568496 is an abundant number, since it is smaller than the sum of its proper divisors (22348896).

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

20568496 is a wasteful number, since it uses less digits than its factorization.

20568496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98908 (or 98902 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 20568496 is about 4535.2503789758. The cubic root of 20568496 is about 273.9896634174.

It can be divided in two parts, 20 and 568496, that added together give a square (568516 = 754²).

The spelling of 20568496 in words is "twenty million, five hundred sixty-eight thousand, four hundred ninety-six".