21360485 has 8 divisors (see below), whose sum is σ = 25767936. Its totient is φ = 16998160.

The previous prime is 21360481. The next prime is 21360487. The reversal of 21360485 is 58406312.

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

It is not a de Polignac number, because 21360485 - 2² = 21360481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21360481) 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, 10229 + ... + 12138.

It is an arithmetic number, because the mean of its divisors is an integer number (3220992).

Almost surely, 2^21360485 is an apocalyptic number.

It is an amenable number.

21360485 is a deficient number, since it is larger than the sum of its proper divisors (4407451).

21360485 is a wasteful number, since it uses less digits than its factorization.

21360485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22563.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 21360485 is about 4621.7404730253. The cubic root of 21360485 is about 277.4621218218.

Adding to 21360485 its reverse (58406312), we get a palindrome (79766797).

The spelling of 21360485 in words is "twenty-one million, three hundred sixty thousand, four hundred eighty-five".