21314026 has 4 divisors (see below), whose sum is σ = 31971042. Its totient is φ = 10657012.

The previous prime is 21314011. The next prime is 21314053. The reversal of 21314026 is 62041312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16687225 + 4626801 = 4085^2 + 2151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21313994 and 21314012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328505 + ... + 5328508.

Almost surely, 2^21314026 is an apocalyptic number.

21314026 is a deficient number, since it is larger than the sum of its proper divisors (10657016).

21314026 is a wasteful number, since it uses less digits than its factorization.

21314026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657015.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 21314026 is about 4616.7116002627. The cubic root of 21314026 is about 277.2608160039.

Adding to 21314026 its reverse (62041312), we get a palindrome (83355338).

The spelling of 21314026 in words is "twenty-one million, three hundred fourteen thousand, twenty-six".