21230295 has 16 divisors (see below), whose sum is σ = 34162560. Its totient is φ = 11258144.

The previous prime is 21230273. The next prime is 21230299. The reversal of 21230295 is 59203212.

It is a cyclic number.

It is not a de Polignac number, because 21230295 - 2¹¹ = 21228247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1269 + ... + 6638.

It is an arithmetic number, because the mean of its divisors is an integer number (2135160).

Almost surely, 2^21230295 is an apocalyptic number.

21230295 is a deficient number, since it is larger than the sum of its proper divisors (12932265).

21230295 is a wasteful number, since it uses less digits than its factorization.

21230295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8094.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 21230295 is about 4607.6344256028. The cubic root of 21230295 is about 276.8972714854.

The spelling of 21230295 in words is "twenty-one million, two hundred thirty thousand, two hundred ninety-five".