16224493 has 2 divisors, whose sum is σ = 16224494. Its totient is φ = 16224492.

The previous prime is 16224473. The next prime is 16224521. The reversal of 16224493 is 39442261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14040009 + 2184484 = 3747^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 16224493 - 2¹⁷ = 16093421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16224473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112246 + 8112247.

It is an arithmetic number, because the mean of its divisors is an integer number (8112247).

Almost surely, 2^16224493 is an apocalyptic number.

It is an amenable number.

16224493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16224493 is an equidigital number, since it uses as much as digits as its factorization.

16224493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 16224493 is about 4027.9638776930. The cubic root of 16224493 is about 253.1572551082.

The spelling of 16224493 in words is "sixteen million, two hundred twenty-four thousand, four hundred ninety-three".