224435440 has 20 divisors (see below), whose sum is σ = 521812584. Its totient is φ = 89774144.

The previous prime is 224435401. The next prime is 224435501. The reversal of 224435440 is 44534422.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 224435399 and 224435408.

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 3 ways as a sum of consecutive naturals, for example, 1402642 + ... + 1402801.

Almost surely, 2^224435440 is an apocalyptic number.

224435440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224435440 is an abundant number, since it is smaller than the sum of its proper divisors (297377144).

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

224435440 is a wasteful number, since it uses less digits than its factorization.

224435440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805456 (or 2805450 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 224435440 is about 14981.1695137596. The cubic root of 224435440 is about 607.7110671245.

Adding to 224435440 its reverse (44534422), we get a palindrome (268969862).

The spelling of 224435440 in words is "two hundred twenty-four million, four hundred thirty-five thousand, four hundred forty".