16223445 has 24 divisors (see below), whose sum is σ = 32138496. Its totient is φ = 7416288.

The previous prime is 16223443. The next prime is 16223453. The reversal of 16223445 is 54432261.

16223445 is a `hidden beast` number, since 1 + 622 + 34 + 4 + 5 = 666.

It is not a de Polignac number, because 16223445 - 2¹ = 16223443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16223443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25437 + ... + 26066.

It is an arithmetic number, because the mean of its divisors is an integer number (1339104).

Almost surely, 2^16223445 is an apocalyptic number.

16223445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16223445 is a deficient number, since it is larger than the sum of its proper divisors (15915051).

16223445 is a wasteful number, since it uses less digits than its factorization.

16223445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51521 (or 51518 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 16223445 is about 4027.8337850512. The cubic root of 16223445 is about 253.1518042031.

The spelling of 16223445 in words is "sixteen million, two hundred twenty-three thousand, four hundred forty-five".