21345014 has 16 divisors (see below), whose sum is σ = 32679936. Its totient is φ = 10453800.

The previous prime is 21345007. The next prime is 21345029. The reversal of 21345014 is 41054312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26729 + ... + 27515.

It is an arithmetic number, because the mean of its divisors is an integer number (2042496).

Almost surely, 2^21345014 is an apocalyptic number.

21345014 is a deficient number, since it is larger than the sum of its proper divisors (11334922).

21345014 is a wasteful number, since it uses less digits than its factorization.

21345014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 21345014 is about 4620.0664497386. The cubic root of 21345014 is about 277.3951187667.

Adding to 21345014 its reverse (41054312), we get a palindrome (62399326).

The spelling of 21345014 in words is "twenty-one million, three hundred forty-five thousand, fourteen".