21482619 has 16 divisors (see below), whose sum is σ = 29475840. Its totient is φ = 13910400.

The previous prime is 21482603. The next prime is 21482623. The reversal of 21482619 is 91628412.

It is not a de Polignac number, because 21482619 - 2⁴ = 21482603 is a prime.

It is a super-2 number, since 2×21482619² = 923005838198322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21482619.

It is not an unprimeable number, because it can be changed into a prime (21482519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20787 + ... + 21795.

It is an arithmetic number, because the mean of its divisors is an integer number (1842240).

Almost surely, 2^21482619 is an apocalyptic number.

21482619 is a deficient number, since it is larger than the sum of its proper divisors (7993221).

21482619 is a wasteful number, since it uses less digits than its factorization.

21482619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its digits is 6912, while the sum is 33.

The square root of 21482619 is about 4634.9346273707. The cubic root of 21482619 is about 277.9899371821.

The spelling of 21482619 in words is "twenty-one million, four hundred eighty-two thousand, six hundred nineteen".