16223536 has 40 divisors (see below), whose sum is σ = 36810144. Its totient is φ = 6781440.

The previous prime is 16223531. The next prime is 16223539. The reversal of 16223536 is 63532261.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 (16223531) 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 7 ways as a sum of consecutive naturals, for example, 2826 + ... + 6358.

Almost surely, 2^16223536 is an apocalyptic number.

16223536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16223536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18405072).

16223536 is an abundant number, since it is smaller than the sum of its proper divisors (20586608).

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

16223536 is a wasteful number, since it uses less digits than its factorization.

16223536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3583 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 16223536 is about 4027.8450814300. The cubic root of 16223536 is about 253.1522775258.

Adding to 16223536 its reverse (63532261), we get a palindrome (79755797).

The spelling of 16223536 in words is "sixteen million, two hundred twenty-three thousand, five hundred thirty-six".