21124496 has 20 divisors (see below), whose sum is σ = 41424432. Its totient is φ = 10434336.

The previous prime is 21124487. The next prime is 21124501. The reversal of 21124496 is 69442112.

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, 6626 + ... + 9281.

Almost surely, 2^21124496 is an apocalyptic number.

It is an amenable number.

21124496 is a deficient number, since it is larger than the sum of its proper divisors (20299936).

21124496 is a wasteful number, since it uses less digits than its factorization.

21124496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15998 (or 15992 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 21124496 is about 4596.1392494136. The cubic root of 21124496 is about 276.4365422424.

The spelling of 21124496 in words is "twenty-one million, one hundred twenty-four thousand, four hundred ninety-six".