21468603 has 16 divisors (see below), whose sum is σ = 32641056. Its totient is φ = 12433920.

The previous prime is 21468593. The next prime is 21468607. The reversal of 21468603 is 30686412.

It is not a de Polignac number, because 21468603 - 2⁶ = 21468539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21468607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15528 + ... + 16853.

It is an arithmetic number, because the mean of its divisors is an integer number (2040066).

Almost surely, 2^21468603 is an apocalyptic number.

21468603 is a deficient number, since it is larger than the sum of its proper divisors (11172453).

21468603 is a wasteful number, since it uses less digits than its factorization.

21468603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32414.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 21468603 is about 4633.4223852353. The cubic root of 21468603 is about 277.9294672952.

The spelling of 21468603 in words is "twenty-one million, four hundred sixty-eight thousand, six hundred three".