21467834 has 16 divisors (see below), whose sum is σ = 34058400. Its totient is φ = 10120464.

The previous prime is 21467833. The next prime is 21467837. The reversal of 21467834 is 43876412.

It is a junction number, because it is equal to n+sod(n) for n = 21467794 and 21467803.

It is not an unprimeable number, because it can be changed into a prime (21467833) 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 in 7 ways as a sum of consecutive naturals, for example, 7469 + ... + 9935.

It is an arithmetic number, because the mean of its divisors is an integer number (2128650).

Almost surely, 2^21467834 is an apocalyptic number.

21467834 is a deficient number, since it is larger than the sum of its proper divisors (12590566).

21467834 is a wasteful number, since it uses less digits than its factorization.

21467834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717.

The product of its digits is 32256, while the sum is 35.

The square root of 21467834 is about 4633.3394004756. The cubic root of 21467834 is about 277.9261488008.

The spelling of 21467834 in words is "twenty-one million, four hundred sixty-seven thousand, eight hundred thirty-four".