21194322 has 8 divisors (see below), whose sum is σ = 42388656. Its totient is φ = 7064772.

The previous prime is 21194269. The next prime is 21194323. The reversal of 21194322 is 22349112.

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

21194322 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21194292 and 21194301.

It is not an unprimeable number, because it can be changed into a prime (21194323) 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 3 ways as a sum of consecutive naturals, for example, 1766188 + ... + 1766199.

It is an arithmetic number, because the mean of its divisors is an integer number (5298582).

Almost surely, 2^21194322 is an apocalyptic number.

21194322 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.

21194322 is a wasteful number, since it uses less digits than its factorization.

21194322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532392.

The product of its digits is 864, while the sum is 24.

The square root of 21194322 is about 4603.7291405990. The cubic root of 21194322 is about 276.7407898039.

It can be divided in two parts, 2119 and 4322, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 21194322 in words is "twenty-one million, one hundred ninety-four thousand, three hundred twenty-two".