21382096 has 20 divisors (see below), whose sum is σ = 41710500. Its totient is φ = 10618112.

The previous prime is 21382093. The next prime is 21382099. The reversal of 21382096 is 69028312.

It is an interprime number because it is at equal distance from previous prime (21382093) and next prime (21382099).

It can be written as a sum of positive squares in 2 ways, for example, as 6451600 + 14930496 = 2540^2 + 3864^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21382091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101 + ... + 6868.

It is an arithmetic number, because the mean of its divisors is an integer number (2085525).

Almost surely, 2^21382096 is an apocalyptic number.

It is an amenable number.

21382096 is a deficient number, since it is larger than the sum of its proper divisors (20328404).

21382096 is a wasteful number, since it uses less digits than its factorization.

21382096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9126 (or 9120 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 21382096 is about 4624.0778540159. The cubic root of 21382096 is about 277.5556623456. Note that the first 3 decimals are identical.

The spelling of 21382096 in words is "twenty-one million, three hundred eighty-two thousand, ninety-six".