16224478 has 8 divisors (see below), whose sum is σ = 24471720. Its totient is φ = 8067240.

The previous prime is 16224473. The next prime is 16224493. The reversal of 16224478 is 87442261.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16224473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22048 + ... + 22771.

It is an arithmetic number, because the mean of its divisors is an integer number (3058965).

Almost surely, 2^16224478 is an apocalyptic number.

16224478 is a deficient number, since it is larger than the sum of its proper divisors (8247242).

16224478 is a wasteful number, since it uses less digits than its factorization.

16224478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45002.

The product of its digits is 21504, while the sum is 34.

The square root of 16224478 is about 4027.9620157097. The cubic root of 16224478 is about 253.1571770912.

The spelling of 16224478 in words is "sixteen million, two hundred twenty-four thousand, four hundred seventy-eight".