21434295 has 8 divisors (see below), whose sum is σ = 34294896. Its totient is φ = 11431616.

The previous prime is 21434293. The next prime is 21434323. The reversal of 21434295 is 59243412.

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

It is a cyclic number.

It is not a de Polignac number, because 21434295 - 2¹ = 21434293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21434293) 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, 714462 + ... + 714491.

It is an arithmetic number, because the mean of its divisors is an integer number (4286862).

Almost surely, 2^21434295 is an apocalyptic number.

21434295 is a deficient number, since it is larger than the sum of its proper divisors (12860601).

21434295 is a wasteful number, since it uses less digits than its factorization.

21434295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428961.

The product of its digits is 8640, while the sum is 30.

The square root of 21434295 is about 4629.7186739585. The cubic root of 21434295 is about 277.7813395395.

The spelling of 21434295 in words is "twenty-one million, four hundred thirty-four thousand, two hundred ninety-five".