16882381 has 4 divisors (see below), whose sum is σ = 16894332. Its totient is φ = 16870432.

The previous prime is 16882361. The next prime is 16882387. The reversal of 16882381 is 18328861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3006756 + 13875625 = 1734^2 + 3725^2 .

It is a cyclic number.

It is not a de Polignac number, because 16882381 - 2⁹ = 16881869 is a prime.

It is a super-2 number, since 2×16882381² = 570029576458322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16882381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16882387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3520 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (4223583).

Almost surely, 2^16882381 is an apocalyptic number.

It is an amenable number.

16882381 is a deficient number, since it is larger than the sum of its proper divisors (11951).

16882381 is a wasteful number, since it uses less digits than its factorization.

16882381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11950.

The product of its digits is 18432, while the sum is 37.

The square root of 16882381 is about 4108.8174697837. The cubic root of 16882381 is about 256.5337830911.

The spelling of 16882381 in words is "sixteen million, eight hundred eighty-two thousand, three hundred eighty-one".