21094496 has 24 divisors (see below), whose sum is σ = 43336944. Its totient is φ = 10088320.

The previous prime is 21094483. The next prime is 21094511. The reversal of 21094496 is 69449012.

It is a super-2 number, since 2×21094496² = 889955522988032, which contains 22 as substring.

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, 13595 + ... + 15066.

It is an arithmetic number, because the mean of its divisors is an integer number (1805706).

Almost surely, 2^21094496 is an apocalyptic number.

It is an amenable number.

21094496 is an abundant number, since it is smaller than the sum of its proper divisors (22242448).

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

21094496 is a wasteful number, since it uses less digits than its factorization.

21094496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28694 (or 28686 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 21094496 is about 4592.8744811937. The cubic root of 21094496 is about 276.3056195893.

The spelling of 21094496 in words is "twenty-one million, ninety-four thousand, four hundred ninety-six".