21302614 has 16 divisors (see below), whose sum is σ = 32563440. Its totient is φ = 10450080.

The previous prime is 21302597. The next prime is 21302651. The reversal of 21302614 is 41620312.

It is a junction number, because it is equal to n+sod(n) for n = 21302591 and 21302600.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29692 + ... + 30400.

It is an arithmetic number, because the mean of its divisors is an integer number (2035215).

Almost surely, 2^21302614 is an apocalyptic number.

21302614 is a deficient number, since it is larger than the sum of its proper divisors (11260826).

21302614 is a wasteful number, since it uses less digits than its factorization.

21302614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 21302614 is about 4615.4754901310. The cubic root of 21302614 is about 277.2113233160.

Adding to 21302614 its reverse (41620312), we get a palindrome (62922926).

The spelling of 21302614 in words is "twenty-one million, three hundred two thousand, six hundred fourteen".