1440401222 has 8 divisors (see below), whose sum is σ = 2326802016. Its totient is φ = 664800552.

The previous prime is 1440401189. The next prime is 1440401251. The reversal of 1440401222 is 2221040441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1440401194 and 1440401203.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 27699998 + ... + 27700049.

It is an arithmetic number, because the mean of its divisors is an integer number (290850252).

Almost surely, 2^1440401222 is an apocalyptic number.

1440401222 is a deficient number, since it is larger than the sum of its proper divisors (886400794).

1440401222 is a wasteful number, since it uses less digits than its factorization.

1440401222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55400062.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1440401222 is about 37952.6181178585. The cubic root of 1440401222 is about 1129.3481039063.

Adding to 1440401222 its reverse (2221040441), we get a palindrome (3661441663).

The spelling of 1440401222 in words is "one billion, four hundred forty million, four hundred one thousand, two hundred twenty-two".