21483356 has 12 divisors (see below), whose sum is σ = 37640568. Its totient is φ = 10728912.

The previous prime is 21483337. The next prime is 21483361. The reversal of 21483356 is 65338412.

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, 1295 + ... + 6681.

It is an arithmetic number, because the mean of its divisors is an integer number (3136714).

Almost surely, 2^21483356 is an apocalyptic number.

It is an amenable number.

21483356 is a deficient number, since it is larger than the sum of its proper divisors (16157212).

21483356 is a wasteful number, since it uses less digits than its factorization.

21483356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388 (or 6386 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 21483356 is about 4635.0141315858. The cubic root of 21483356 is about 277.9931161279.

The spelling of 21483356 in words is "twenty-one million, four hundred eighty-three thousand, three hundred fifty-six".