21083196 has 24 divisors (see below), whose sum is σ = 52088400. Its totient is φ = 6614272.

The previous prime is 21083191. The next prime is 21083197. The reversal of 21083196 is 69138012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21083191) by changing a digit.

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, 51471 + ... + 51878.

It is an arithmetic number, because the mean of its divisors is an integer number (2170350).

Almost surely, 2^21083196 is an apocalyptic number.

It is an amenable number.

21083196 is an abundant number, since it is smaller than the sum of its proper divisors (31005204).

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

21083196 is a wasteful number, since it uses less digits than its factorization.

21083196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103373 (or 103371 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 21083196 is about 4591.6441499750. The cubic root of 21083196 is about 276.2562732071.

The spelling of 21083196 in words is "twenty-one million, eighty-three thousand, one hundred ninety-six".