21482616 has 32 divisors (see below), whose sum is σ = 56534400. Its totient is φ = 6783840.

The previous prime is 21482603. The next prime is 21482623. The reversal of 21482616 is 61628412.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23100 + ... + 24011.

It is an arithmetic number, because the mean of its divisors is an integer number (1766700).

Almost surely, 2^21482616 is an apocalyptic number.

It is an amenable number.

21482616 is an abundant number, since it is smaller than the sum of its proper divisors (35051784).

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

21482616 is a wasteful number, since it uses less digits than its factorization.

21482616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47139 (or 47135 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 21482616 is about 4634.9343037415. The cubic root of 21482616 is about 277.9899242419.

The spelling of 21482616 in words is "twenty-one million, four hundred eighty-two thousand, six hundred sixteen".