224244440 has 32 divisors (see below), whose sum is σ = 576629280. Its totient is φ = 76883712.

The previous prime is 224244439. The next prime is 224244469. The reversal of 224244440 is 44442422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400157 + ... + 400716.

It is an arithmetic number, because the mean of its divisors is an integer number (18019665).

Almost surely, 2^224244440 is an apocalyptic number.

224244440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224244440 is an abundant number, since it is smaller than the sum of its proper divisors (352384840).

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

224244440 is a wasteful number, since it uses less digits than its factorization.

224244440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800891 (or 800887 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 224244440 is about 14974.7934877246. The cubic root of 224244440 is about 607.5386259148.

Adding to 224244440 its reverse (44442422), we get a palindrome (268686862).

The spelling of 224244440 in words is "two hundred twenty-four million, two hundred forty-four thousand, four hundred forty".