16223554 has 16 divisors (see below), whose sum is σ = 25100928. Its totient is φ = 7860112.

The previous prime is 16223551. The next prime is 16223609. The reversal of 16223554 is 45532261.

It is not an unprimeable number, because it can be changed into a prime (16223551) 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, 9252 + ... + 10864.

It is an arithmetic number, because the mean of its divisors is an integer number (1568808).

Almost surely, 2^16223554 is an apocalyptic number.

16223554 is a deficient number, since it is larger than the sum of its proper divisors (8877374).

16223554 is a wasteful number, since it uses less digits than its factorization.

16223554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769.

The product of its digits is 7200, while the sum is 28.

The square root of 16223554 is about 4027.8473158748. The cubic root of 16223554 is about 253.1523711498.

It can be divided in two parts, 162 and 23554, that added together give a square (23716 = 154²).

The spelling of 16223554 in words is "sixteen million, two hundred twenty-three thousand, five hundred fifty-four".