21450314 has 8 divisors (see below), whose sum is σ = 33285060. Its totient is φ = 10355296.

The previous prime is 21450313. The next prime is 21450323. The reversal of 21450314 is 41305412.

It can be written as a sum of positive squares in 2 ways, for example, as 18447025 + 3003289 = 4295^2 + 1733^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21450313) 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, 184859 + ... + 184974.

Almost surely, 2^21450314 is an apocalyptic number.

21450314 is a deficient number, since it is larger than the sum of its proper divisors (11834746).

21450314 is a wasteful number, since it uses less digits than its factorization.

21450314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369864.

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

The square root of 21450314 is about 4631.4483695708. The cubic root of 21450314 is about 277.8505226130.

Adding to 21450314 its reverse (41305412), we get a palindrome (62755726).

The spelling of 21450314 in words is "twenty-one million, four hundred fifty thousand, three hundred fourteen".