224344140 has 48 divisors (see below), whose sum is σ = 637550592. Its totient is φ = 58931136.

The previous prime is 224344091. The next prime is 224344147. The reversal of 224344140 is 41443422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 224344140.

It is not an unprimeable number, because it can be changed into a prime (224344147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23884 + ... + 31923.

It is an arithmetic number, because the mean of its divisors is an integer number (13282304).

Almost surely, 2^224344140 is an apocalyptic number.

224344140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224344140 is an abundant number, since it is smaller than the sum of its proper divisors (413206452).

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

224344140 is a wasteful number, since it uses less digits than its factorization.

224344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55886 (or 55884 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 224344140 is about 14978.1220451697. The cubic root of 224344140 is about 607.6286506314.

Adding to 224344140 its reverse (41443422), we get a palindrome (265787562).

The spelling of 224344140 in words is "two hundred twenty-four million, three hundred forty-four thousand, one hundred forty".