1440213104 has 80 divisors (see below), whose sum is σ = 3181939200. Its totient is φ = 625658880.

The previous prime is 1440213101. The next prime is 1440213113. The reversal of 1440213104 is 4013120441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440213101) 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 15 ways as a sum of consecutive naturals, for example, 353672 + ... + 357720.

It is an arithmetic number, because the mean of its divisors is an integer number (39774240).

Almost surely, 2^1440213104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440213104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590969600).

1440213104 is an abundant number, since it is smaller than the sum of its proper divisors (1741726096).

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

1440213104 is a wasteful number, since it uses less digits than its factorization.

1440213104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158 (or 4152 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1440213104 is about 37950.1397098878. The cubic root of 1440213104 is about 1129.2989370601.

Adding to 1440213104 its reverse (4013120441), we get a palindrome (5453333545).

The spelling of 1440213104 in words is "one billion, four hundred forty million, two hundred thirteen thousand, one hundred four".