224173985 has 32 divisors (see below), whose sum is σ = 339697152. Its totient is φ = 138378240.

The previous prime is 224173979. The next prime is 224173987. The reversal of 224173985 is 589371422.

It is not a de Polignac number, because 224173985 - 2⁴ = 224173969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224173987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5495 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (10615536).

Almost surely, 2^224173985 is an apocalyptic number.

It is an amenable number.

224173985 is a deficient number, since it is larger than the sum of its proper divisors (115523167).

224173985 is a wasteful number, since it uses less digits than its factorization.

224173985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16433.

The product of its digits is 120960, while the sum is 41.

The square root of 224173985 is about 14972.4408497746. The cubic root of 224173985 is about 607.4749920554.

The spelling of 224173985 in words is "two hundred twenty-four million, one hundred seventy-three thousand, nine hundred eighty-five".