21032196 has 24 divisors (see below), whose sum is σ = 51962400. Its totient is φ = 6598272.

The previous prime is 21032161. The next prime is 21032197. The reversal of 21032196 is 69123012.

It is not an unprimeable number, because it can be changed into a prime (21032197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51346 + ... + 51753.

It is an arithmetic number, because the mean of its divisors is an integer number (2165100).

Almost surely, 2^21032196 is an apocalyptic number.

It is an amenable number.

21032196 is an abundant number, since it is smaller than the sum of its proper divisors (30930204).

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

21032196 is a wasteful number, since it uses less digits than its factorization.

21032196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103123 (or 103121 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 21032196 is about 4586.0872211505. The cubic root of 21032196 is about 276.0333398078.

The spelling of 21032196 in words is "twenty-one million, thirty-two thousand, one hundred ninety-six".