1440244434 has 8 divisors (see below), whose sum is σ = 2880488880. Its totient is φ = 480081476.

The previous prime is 1440244417. The next prime is 1440244439. The reversal of 1440244434 is 4344420441.

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

1440244434 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1440244439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120020364 + ... + 120020375.

It is an arithmetic number, because the mean of its divisors is an integer number (360061110).

Almost surely, 2^1440244434 is an apocalyptic number.

1440244434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1440244434 is a wasteful number, since it uses less digits than its factorization.

1440244434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240040744.

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 1440244434 is about 37950.5524860970. The cubic root of 1440244434 is about 1129.3071258203.

Adding to 1440244434 its reverse (4344420441), we get a palindrome (5784664875).

The spelling of 1440244434 in words is "one billion, four hundred forty million, two hundred forty-four thousand, four hundred thirty-four".