16021336 has 8 divisors (see below), whose sum is σ = 30040020. Its totient is φ = 8010664.

The previous prime is 16021331. The next prime is 16021339. The reversal of 16021336 is 63312061.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16021331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001326 + ... + 1001341.

Almost surely, 2^16021336 is an apocalyptic number.

It is an amenable number.

16021336 is a deficient number, since it is larger than the sum of its proper divisors (14018684).

16021336 is a wasteful number, since it uses less digits than its factorization.

16021336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002673 (or 2002669 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 16021336 is about 4002.6661114812. Note that the first 3 decimals coincide. The cubic root of 16021336 is about 252.0961672101.

Adding to 16021336 its reverse (63312061), we get a palindrome (79333397).

The spelling of 16021336 in words is "sixteen million, twenty-one thousand, three hundred thirty-six".