224648440 has 16 divisors (see below), whose sum is σ = 505459080. Its totient is φ = 89859360.

The previous prime is 224648399. The next prime is 224648441. The reversal of 224648440 is 44846422.

It is a junction number, because it is equal to n+sod(n) for n = 224648396 and 224648405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224648441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2808066 + ... + 2808145.

Almost surely, 2^224648440 is an apocalyptic number.

224648440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224648440 is an abundant number, since it is smaller than the sum of its proper divisors (280810640).

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

224648440 is a wasteful number, since it uses less digits than its factorization.

224648440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616222 (or 5616218 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 224648440 is about 14988.2767521820. The cubic root of 224648440 is about 607.9032553248.

The spelling of 224648440 in words is "two hundred twenty-four million, six hundred forty-eight thousand, four hundred forty".