224001444 has 24 divisors (see below), whose sum is σ = 523337248. Its totient is φ = 74571840.

The previous prime is 224001433. The next prime is 224001473. The reversal of 224001444 is 444100422.

It is a self number, because there is not a number n which added to its sum of digits gives 224001444.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1777 + ... + 21240.

Almost surely, 2^224001444 is an apocalyptic number.

It is an amenable number.

224001444 is an abundant number, since it is smaller than the sum of its proper divisors (299335804).

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

224001444 is a wasteful number, since it uses less digits than its factorization.

224001444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23835 (or 23833 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 224001444 is about 14966.6777876722. The cubic root of 224001444 is about 607.3190993826.

Adding to 224001444 its reverse (444100422), we get a palindrome (668101866).

The spelling of 224001444 in words is "two hundred twenty-four million, one thousand, four hundred forty-four".