21852014 has 8 divisors (see below), whose sum is σ = 34503240. Its totient is φ = 10350936.

The previous prime is 21852013. The next prime is 21852029. The reversal of 21852014 is 41025812.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21852011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287489 + ... + 287564.

It is an arithmetic number, because the mean of its divisors is an integer number (4312905).

Almost surely, 2^21852014 is an apocalyptic number.

21852014 is a deficient number, since it is larger than the sum of its proper divisors (12651226).

21852014 is a wasteful number, since it uses less digits than its factorization.

21852014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575074.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 21852014 is about 4674.6137808379. The cubic root of 21852014 is about 279.5742423927.

Adding to 21852014 its reverse (41025812), we get a palindrome (62877826).

The spelling of 21852014 in words is "twenty-one million, eight hundred fifty-two thousand, fourteen".