16021936 has 20 divisors (see below), whose sum is σ = 35477392. Its totient is φ = 6866496.

The previous prime is 16021927. The next prime is 16021937. The reversal of 16021936 is 63912061.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (16021937) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71415 + ... + 71638.

Almost surely, 2^16021936 is an apocalyptic number.

16021936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16021936 is an abundant number, since it is smaller than the sum of its proper divisors (19455456).

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

16021936 is a wasteful number, since it uses less digits than its factorization.

16021936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143068 (or 143062 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 16021936 is about 4002.7410608232. The cubic root of 16021936 is about 252.0993141763.

Adding to 16021936 its reverse (63912061), we get a palindrome (79933997).

The spelling of 16021936 in words is "sixteen million, twenty-one thousand, nine hundred thirty-six".