1440122013 has 12 divisors (see below), whose sum is σ = 2269283328. Its totient is φ = 872801160.

The previous prime is 1440122011. The next prime is 1440122063. The reversal of 1440122013 is 3102210441.

1440122013 is a `hidden beast` number, since 1 + 440 + 1 + 220 + 1 + 3 = 666.

It is not a de Polignac number, because 1440122013 - 2¹ = 1440122011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440122011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7273245 + ... + 7273442.

It is an arithmetic number, because the mean of its divisors is an integer number (189106944).

Almost surely, 2^1440122013 is an apocalyptic number.

It is an amenable number.

1440122013 is a deficient number, since it is larger than the sum of its proper divisors (829161315).

1440122013 is a wasteful number, since it uses less digits than its factorization.

1440122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14546704 (or 14546701 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1440122013 is about 37948.9395504011. The cubic root of 1440122013 is about 1129.2751278201.

Adding to 1440122013 its reverse (3102210441), we get a palindrome (4542332454).

The spelling of 1440122013 in words is "one billion, four hundred forty million, one hundred twenty-two thousand, thirteen".