21342195 has 36 divisors (see below), whose sum is σ = 43037280. Its totient is φ = 9755424.

The previous prime is 21342193. The next prime is 21342203. The reversal of 21342195 is 59124312.

It is not a de Polignac number, because 21342195 - 2¹ = 21342193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21342193) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2635 + ... + 7044.

It is an arithmetic number, because the mean of its divisors is an integer number (1195480).

Almost surely, 2^21342195 is an apocalyptic number.

21342195 is an abundant number, since it is smaller than the sum of its proper divisors (21695085).

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

21342195 is a wasteful number, since it uses less digits than its factorization.

21342195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9704 (or 9694 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 21342195 is about 4619.7613574729. The cubic root of 21342195 is about 277.3829065273.

The spelling of 21342195 in words is "twenty-one million, three hundred forty-two thousand, one hundred ninety-five".