21103414 has 16 divisors (see below), whose sum is σ = 33727680. Its totient is φ = 9874440.

The previous prime is 21103403. The next prime is 21103441. The reversal of 21103414 is 41430112.

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, 192 + ... + 6499.

It is an arithmetic number, because the mean of its divisors is an integer number (2107980).

Almost surely, 2^21103414 is an apocalyptic number.

21103414 is a deficient number, since it is larger than the sum of its proper divisors (12624266).

21103414 is a wasteful number, since it uses less digits than its factorization.

21103414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21103414 is about 4593.8452303054. The cubic root of 21103414 is about 276.3445514881.

Adding to 21103414 its reverse (41430112), we get a palindrome (62533526).

The spelling of 21103414 in words is "twenty-one million, one hundred three thousand, four hundred fourteen".