21194302 has 8 divisors (see below), whose sum is σ = 32887800. Its totient is φ = 10231704.

The previous prime is 21194269. The next prime is 21194323. The reversal of 21194302 is 20349112.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182652 + ... + 182767.

It is an arithmetic number, because the mean of its divisors is an integer number (4110975).

Almost surely, 2^21194302 is an apocalyptic number.

21194302 is a deficient number, since it is larger than the sum of its proper divisors (11693498).

21194302 is a wasteful number, since it uses less digits than its factorization.

21194302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365450.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 21194302 is about 4603.7269684463. The cubic root of 21194302 is about 276.7407027551.

The spelling of 21194302 in words is "twenty-one million, one hundred ninety-four thousand, three hundred two".