21466348 has 6 divisors (see below), whose sum is σ = 37566116. Its totient is φ = 10733172.

The previous prime is 21466297. The next prime is 21466349. The reversal of 21466348 is 84366412.

It is not an unprimeable number, because it can be changed into a prime (21466349) 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 as a sum of consecutive naturals, namely, 2683290 + ... + 2683297.

Almost surely, 2^21466348 is an apocalyptic number.

It is an amenable number.

21466348 is a deficient number, since it is larger than the sum of its proper divisors (16099768).

21466348 is a wasteful number, since it uses less digits than its factorization.

21466348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366591 (or 5366589 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 21466348 is about 4633.1790381983. The cubic root of 21466348 is about 277.9197359851.

The spelling of 21466348 in words is "twenty-one million, four hundred sixty-six thousand, three hundred forty-eight".