224479845 has 24 divisors (see below), whose sum is σ = 390495456. Its totient is φ = 119292768.

The previous prime is 224479819. The next prime is 224479859. The reversal of 224479845 is 548974422.

It is not a de Polignac number, because 224479845 - 2⁸ = 224479589 is a prime.

It is a super-2 number, since 2×224479845² = 100782401622448050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 224479845.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3922 + ... + 21548.

It is an arithmetic number, because the mean of its divisors is an integer number (16270644).

Almost surely, 2^224479845 is an apocalyptic number.

It is an amenable number.

224479845 is a deficient number, since it is larger than the sum of its proper divisors (166015611).

224479845 is a wasteful number, since it uses less digits than its factorization.

224479845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17921 (or 17918 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 224479845 is about 14982.6514676141. The cubic root of 224479845 is about 607.7511434310.

The spelling of 224479845 in words is "two hundred twenty-four million, four hundred seventy-nine thousand, eight hundred forty-five".