21196794 has 16 divisors (see below), whose sum is σ = 42783840. Its totient is φ = 7000560.

The previous prime is 21196793. The next prime is 21196811. The reversal of 21196794 is 49769112.

It is not an unprimeable number, because it can be changed into a prime (21196793) 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, 15552 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (2673990).

Almost surely, 2^21196794 is an apocalyptic number.

21196794 is an abundant number, since it is smaller than the sum of its proper divisors (21587046).

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

21196794 is a wasteful number, since it uses less digits than its factorization.

21196794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32525.

The product of its digits is 27216, while the sum is 39.

The square root of 21196794 is about 4603.9976107726. The cubic root of 21196794 is about 276.7515486074.

The spelling of 21196794 in words is "twenty-one million, one hundred ninety-six thousand, seven hundred ninety-four".