1440213103 has 16 divisors (see below), whose sum is σ = 1723000320. Its totient is φ = 1177029216.

The previous prime is 1440213101. The next prime is 1440213113. The reversal of 1440213103 is 3013120441.

It is a cyclic number.

It is not a de Polignac number, because 1440213103 - 2¹ = 1440213101 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36928 + ... + 65146.

It is an arithmetic number, because the mean of its divisors is an integer number (107687520).

Almost surely, 2^1440213103 is an apocalyptic number.

1440213103 is a deficient number, since it is larger than the sum of its proper divisors (282787217).

1440213103 is a wasteful number, since it uses less digits than its factorization.

1440213103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28566.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1440213103 is about 37950.1396967126. The cubic root of 1440213103 is about 1129.2989367987.

Adding to 1440213103 its reverse (3013120441), we get a palindrome (4453333544).

The spelling of 1440213103 in words is "one billion, four hundred forty million, two hundred thirteen thousand, one hundred three".