16013224 has 8 divisors (see below), whose sum is σ = 30024810. Its totient is φ = 8006608.

The previous prime is 16013213. The next prime is 16013227. The reversal of 16013224 is 42231061.

It can be written as a sum of positive squares in only one way, i.e., 14976900 + 1036324 = 3870^2 + 1018^2 .

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

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16013227) 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 as a sum of consecutive naturals, namely, 1000819 + ... + 1000834.

Almost surely, 2^16013224 is an apocalyptic number.

It is an amenable number.

16013224 is a deficient number, since it is larger than the sum of its proper divisors (14011586).

16013224 is a wasteful number, since it uses less digits than its factorization.

16013224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001659 (or 2001655 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16013224 is about 4001.6526585899. The cubic root of 16013224 is about 252.0536125119.

Adding to 16013224 its reverse (42231061), we get a palindrome (58244285).

The spelling of 16013224 in words is "sixteen million, thirteen thousand, two hundred twenty-four".