1440416634 has 8 divisors (see below), whose sum is σ = 2880833280. Its totient is φ = 480138876.

The previous prime is 1440416603. The next prime is 1440416639. The reversal of 1440416634 is 4366140441.

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

1440416634 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1440416595 and 1440416604.

It is not an unprimeable number, because it can be changed into a prime (1440416639) 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 3 ways as a sum of consecutive naturals, for example, 120034714 + ... + 120034725.

It is an arithmetic number, because the mean of its divisors is an integer number (360104160).

Almost surely, 2^1440416634 is an apocalyptic number.

1440416634 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.

1440416634 is a wasteful number, since it uses less digits than its factorization.

1440416634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240069444.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 1440416634 is about 37952.8211599612. The cubic root of 1440416634 is about 1129.3521318235.

The spelling of 1440416634 in words is "one billion, four hundred forty million, four hundred sixteen thousand, six hundred thirty-four".