21314354 has 8 divisors (see below), whose sum is σ = 31998828. Its totient is φ = 10648080.

The previous prime is 21314327. The next prime is 21314357. The reversal of 21314354 is 45341312.

It can be written as a sum of positive squares in 2 ways, for example, as 21298225 + 16129 = 4615^2 + 127^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21314357) 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, 1097 + ... + 6620.

Almost surely, 2^21314354 is an apocalyptic number.

21314354 is a deficient number, since it is larger than the sum of its proper divisors (10684474).

21314354 is a wasteful number, since it uses less digits than its factorization.

21314354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100.

The product of its digits is 1440, while the sum is 23.

The square root of 21314354 is about 4616.7471232460. The cubic root of 21314354 is about 277.2622382455.

Adding to 21314354 its reverse (45341312), we get a palindrome (66655666).

The spelling of 21314354 in words is "twenty-one million, three hundred fourteen thousand, three hundred fifty-four".