1440005414 has 16 divisors (see below), whose sum is σ = 2211348480. Its totient is φ = 702906120.

The previous prime is 1440005393. The next prime is 1440005419. The reversal of 1440005414 is 4145000441.

It is a happy number.

It is a super-2 number, since 2×1440005414² = 4147231184698622792, which contains 22 as substring.

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 1440005414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440005419) by changing a digit.

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, 278747 + ... + 283865.

It is an arithmetic number, because the mean of its divisors is an integer number (138209280).

Almost surely, 2^1440005414 is an apocalyptic number.

1440005414 is a deficient number, since it is larger than the sum of its proper divisors (771343066).

1440005414 is a wasteful number, since it uses less digits than its factorization.

1440005414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8435.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1440005414 is about 37947.4032576671. The cubic root of 1440005414 is about 1129.2446498691.

Adding to 1440005414 its reverse (4145000441), we get a palindrome (5585005855).

The spelling of 1440005414 in words is "one billion, four hundred forty million, five thousand, four hundred fourteen".