224224342142440 has 16 divisors (see below), whose sum is σ = 504504769820580. Its totient is φ = 89689736856960.

The previous prime is 224224342142431. The next prime is 224224342142503. The reversal of 224224342142440 is 44241243422422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 223818774409476 + 405567732964 = 14960574^2 + 636842^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 5605608553561 = 224224342142440 / (2 + 2 + 4 + 2 + 2 + 4 + 3 + 4 + 2 + 1 + 4 + 2 + 4 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 224224342142393 and 224224342142402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802804276741 + ... + 2802804276820.

Almost surely, 2^{224224342142440} is an apocalyptic number.

224224342142440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224224342142440 is an abundant number, since it is smaller than the sum of its proper divisors (280280427678140).

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

224224342142440 is a wasteful number, since it uses less digits than its factorization.

224224342142440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605608553572 (or 5605608553568 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 40.

Adding to 224224342142440 its reverse (44241243422422), we get a palindrome (268465585564862).

The spelling of 224224342142440 in words is "two hundred twenty-four trillion, two hundred twenty-four billion, three hundred forty-two million, one hundred forty-two thousand, four hundred forty".