21468675 has 12 divisors (see below), whose sum is σ = 35495000. Its totient is φ = 11449920.

The previous prime is 21468659. The next prime is 21468677. The reversal of 21468675 is 57686412.

It is not a de Polignac number, because 21468675 - 2⁴ = 21468659 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21468677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143050 + ... + 143199.

Almost surely, 2^21468675 is an apocalyptic number.

21468675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21468675 is a deficient number, since it is larger than the sum of its proper divisors (14026325).

21468675 is a wasteful number, since it uses less digits than its factorization.

21468675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286262 (or 286257 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 21468675 is about 4633.4301548637. The cubic root of 21468675 is about 277.9297779954.

The spelling of 21468675 in words is "twenty-one million, four hundred sixty-eight thousand, six hundred seventy-five".