1440343422 has 24 divisors (see below), whose sum is σ = 3566564976. Its totient is φ = 411526656.

The previous prime is 1440343403. The next prime is 1440343427. The reversal of 1440343422 is 2243430441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440343427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5715523 + ... + 5715774.

It is an arithmetic number, because the mean of its divisors is an integer number (148606874).

Almost surely, 2^1440343422 is an apocalyptic number.

1440343422 is an abundant number, since it is smaller than the sum of its proper divisors (2126221554).

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

1440343422 is a wasteful number, since it uses less digits than its factorization.

1440343422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431312 (or 11431309 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1440343422 is about 37951.8566344257. The cubic root of 1440343422 is about 1129.3329976538.

Adding to 1440343422 its reverse (2243430441), we get a palindrome (3683773863).

It can be divided in two parts, 144034 and 3422, that added together give a square (147456 = 384²).

The spelling of 1440343422 in words is "one billion, four hundred forty million, three hundred forty-three thousand, four hundred twenty-two".