21482336 has 12 divisors (see below), whose sum is σ = 42293412. Its totient is φ = 10741152.

The previous prime is 21482303. The next prime is 21482353. The reversal of 21482336 is 63328412.

It is a super-2 number, since 2×21482336² = 922981520033792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21482299 and 21482308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335630 + ... + 335693.

It is an arithmetic number, because the mean of its divisors is an integer number (3524451).

Almost surely, 2^21482336 is an apocalyptic number.

It is an amenable number.

21482336 is a deficient number, since it is larger than the sum of its proper divisors (20811076).

21482336 is an equidigital number, since it uses as much as digits as its factorization.

21482336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671333 (or 671325 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 21482336 is about 4634.9040982527. The cubic root of 21482336 is about 277.9887164821.

The spelling of 21482336 in words is "twenty-one million, four hundred eighty-two thousand, three hundred thirty-six".