21034414 has 4 divisors (see below), whose sum is σ = 31551624. Its totient is φ = 10517206.

The previous prime is 21034411. The next prime is 21034417. The reversal of 21034414 is 41443012.

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

It is an interprime number because it is at equal distance from previous prime (21034411) and next prime (21034417).

It is a junction number, because it is equal to n+sod(n) for n = 21034391 and 21034400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21034411) by changing a digit.

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, 5258602 + ... + 5258605.

It is an arithmetic number, because the mean of its divisors is an integer number (7887906).

Almost surely, 2^21034414 is an apocalyptic number.

21034414 is a deficient number, since it is larger than the sum of its proper divisors (10517210).

21034414 is a wasteful number, since it uses less digits than its factorization.

21034414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517209.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 21034414 is about 4586.3290331157. The cubic root of 21034414 is about 276.0430427165.

Adding to 21034414 its reverse (41443012), we get a palindrome (62477426).

The spelling of 21034414 in words is "twenty-one million, thirty-four thousand, four hundred fourteen".