20896446 has 8 divisors (see below), whose sum is σ = 41792904. Its totient is φ = 6965480.

The previous prime is 20896441. The next prime is 20896457. The reversal of 20896446 is 64469802.

It is a sphenic number, since it is the product of 3 distinct primes.

20896446 is an admirable number.

It is a super-2 number, since 2×20896446² = 873322910861832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20896441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1741365 + ... + 1741376.

It is an arithmetic number, because the mean of its divisors is an integer number (5224113).

Almost surely, 2^20896446 is an apocalyptic number.

20896446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20896446 is a wasteful number, since it uses less digits than its factorization.

20896446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482746.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 20896446 is about 4571.2630639682. The cubic root of 20896446 is about 275.4381818759.

The spelling of 20896446 in words is "twenty million, eight hundred ninety-six thousand, four hundred forty-six".