21106348 has 12 divisors (see below), whose sum is σ = 37295440. Its totient is φ = 10450512.

The previous prime is 21106343. The next prime is 21106361. The reversal of 21106348 is 84360112.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (21106343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25203 + ... + 26026.

Almost surely, 2^21106348 is an apocalyptic number.

It is an amenable number.

21106348 is a deficient number, since it is larger than the sum of its proper divisors (16189092).

21106348 is a wasteful number, since it uses less digits than its factorization.

21106348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51336 (or 51334 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 21106348 is about 4594.1645595255. The cubic root of 21106348 is about 276.3573575889.

The spelling of 21106348 in words is "twenty-one million, one hundred six thousand, three hundred forty-eight".