21834326 has 8 divisors (see below), whose sum is σ = 32855760. Its totient is φ = 10882408.

The previous prime is 21834277. The next prime is 21834331. The reversal of 21834326 is 62343812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16586 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (4106970).

Almost surely, 2^21834326 is an apocalyptic number.

21834326 is a deficient number, since it is larger than the sum of its proper divisors (11021434).

21834326 is a wasteful number, since it uses less digits than its factorization.

21834326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34758.

The product of its digits is 6912, while the sum is 29.

The square root of 21834326 is about 4672.7214768270. The cubic root of 21834326 is about 279.4987887211.

The spelling of 21834326 in words is "twenty-one million, eight hundred thirty-four thousand, three hundred twenty-six".