1440331214 has 32 divisors (see below), whose sum is σ = 2601696000. Its totient is φ = 584210880.

The previous prime is 1440331201. The next prime is 1440331219. The reversal of 1440331214 is 4121330441.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440331214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440331219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349337 + ... + 353435.

It is an arithmetic number, because the mean of its divisors is an integer number (81303000).

Almost surely, 2^1440331214 is an apocalyptic number.

1440331214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1440331214 is a deficient number, since it is larger than the sum of its proper divisors (1161364786).

1440331214 is a wasteful number, since it uses less digits than its factorization.

1440331214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1440331214 is about 37951.6957987387. The cubic root of 1440331214 is about 1129.3298069943.

Adding to 1440331214 its reverse (4121330441), we get a palindrome (5561661655).

The spelling of 1440331214 in words is "one billion, four hundred forty million, three hundred thirty-one thousand, two hundred fourteen".