21496192 has 32 divisors (see below), whose sum is σ = 44308800. Its totient is φ = 10375680.

The previous prime is 21496187. The next prime is 21496199. The reversal of 21496192 is 29169412.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21496199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817 + ... + 6607.

It is an arithmetic number, because the mean of its divisors is an integer number (1384650).

Almost surely, 2^21496192 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 21496192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22154400).

21496192 is an abundant number, since it is smaller than the sum of its proper divisors (22812608).

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

21496192 is an equidigital number, since it uses as much as digits as its factorization.

21496192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834 (or 5822 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 21496192 is about 4636.3986023637. The cubic root of 21496192 is about 278.0484707506.

The spelling of 21496192 in words is "twenty-one million, four hundred ninety-six thousand, one hundred ninety-two".