21093348 has 12 divisors (see below), whose sum is σ = 49217840. Its totient is φ = 7031112.

The previous prime is 21093313. The next prime is 21093377. The reversal of 21093348 is 84339012.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 878878 + ... + 878901.

Almost surely, 2^21093348 is an apocalyptic number.

It is an amenable number.

21093348 is an abundant number, since it is smaller than the sum of its proper divisors (28124492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21093348 is a wasteful number, since it uses less digits than its factorization.

21093348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757786 (or 1757784 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 21093348 is about 4592.7495032932. The cubic root of 21093348 is about 276.3006071505.

The spelling of 21093348 in words is "twenty-one million, ninety-three thousand, three hundred forty-eight".