21412935 has 24 divisors (see below), whose sum is σ = 37453104. Its totient is φ = 11316480.

The previous prime is 21412889. The next prime is 21412949. The reversal of 21412935 is 53921412.

It is not a de Polignac number, because 21412935 - 2⁸ = 21412679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21412899 and 21412908.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 2980 + ... + 7190.

It is an arithmetic number, because the mean of its divisors is an integer number (1560546).

Almost surely, 2^21412935 is an apocalyptic number.

21412935 is a deficient number, since it is larger than the sum of its proper divisors (16040169).

21412935 is a wasteful number, since it uses less digits than its factorization.

21412935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4332 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 21412935 is about 4627.4112633307. The cubic root of 21412935 is about 277.6890360379.

The spelling of 21412935 in words is "twenty-one million, four hundred twelve thousand, nine hundred thirty-five".