21094712 has 32 divisors (see below), whose sum is σ = 41979600. Its totient is φ = 9909504.

The previous prime is 21094649. The next prime is 21094721. The reversal of 21094712 is 21749012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20318 + ... + 21330.

Almost surely, 2^21094712 is an apocalyptic number.

It is an amenable number.

21094712 is a deficient number, since it is larger than the sum of its proper divisors (20884888).

21094712 is a wasteful number, since it uses less digits than its factorization.

21094712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 21094712 is about 4592.8979958192. The cubic root of 21094712 is about 276.3065626759.

The spelling of 21094712 in words is "twenty-one million, ninety-four thousand, seven hundred twelve".