16026021 has 12 divisors (see below), whose sum is σ = 25253280. Its totient is φ = 9712680.

The previous prime is 16026011. The next prime is 16026029. The reversal of 16026021 is 12062061.

It is a happy number.

16026021 is a `hidden beast` number, since 1 + 60 + 2 + 602 + 1 = 666.

16026021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16026021 - 2¹⁸ = 15763877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16025985 and 16026003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16026029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80841 + ... + 81038.

It is an arithmetic number, because the mean of its divisors is an integer number (2104440).

Almost surely, 2^16026021 is an apocalyptic number.

16026021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16026021 is a deficient number, since it is larger than the sum of its proper divisors (9227259).

16026021 is a wasteful number, since it uses less digits than its factorization.

16026021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161896 (or 161893 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 16026021 is about 4003.2513036281. The cubic root of 16026021 is about 252.1207376836.

Adding to 16026021 its reverse (12062061), we get a palindrome (28088082).

The spelling of 16026021 in words is "sixteen million, twenty-six thousand, twenty-one".