1440144414 has 32 divisors (see below), whose sum is σ = 3286820640. Its totient is φ = 467073216.

The previous prime is 1440144413. The next prime is 1440144449. The reversal of 1440144414 is 4144410441.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440144413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358399 + ... + 362394.

It is an arithmetic number, because the mean of its divisors is an integer number (102713145).

Almost surely, 2^1440144414 is an apocalyptic number.

1440144414 is an abundant number, since it is smaller than the sum of its proper divisors (1846676226).

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

1440144414 is a wasteful number, since it uses less digits than its factorization.

1440144414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720841 (or 720835 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 1440144414 is about 37949.2346958407. The cubic root of 1440144414 is about 1129.2809830557.

Adding to 1440144414 its reverse (4144410441), we get a palindrome (5584554855).

The spelling of 1440144414 in words is "one billion, four hundred forty million, one hundred forty-four thousand, four hundred fourteen".