224520918 has 16 divisors (see below), whose sum is σ = 449930160. Its totient is φ = 74692256.

The previous prime is 224520911. The next prime is 224520949. The reversal of 224520918 is 819025422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224520911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33705 + ... + 39812.

It is an arithmetic number, because the mean of its divisors is an integer number (28120635).

Almost surely, 2^224520918 is an apocalyptic number.

224520918 is an abundant number, since it is smaller than the sum of its proper divisors (225409242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224520918 is a wasteful number, since it uses less digits than its factorization.

224520918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74031.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 224520918 is about 14984.0220902133. The cubic root of 224520918 is about 607.7882078431.

The spelling of 224520918 in words is "two hundred twenty-four million, five hundred twenty thousand, nine hundred eighteen".