1440244413 has 12 divisors (see below), whose sum is σ = 2080822848. Its totient is φ = 959946120.

The previous prime is 1440244411. The next prime is 1440244417. The reversal of 1440244413 is 3144420441.

1440244413 is a `hidden beast` number, since 1 + 4 + 4 + 0 + 244 + 413 = 666.

It is not a de Polignac number, because 1440244413 - 2¹ = 1440244411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440244411) 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 11 ways as a sum of consecutive naturals, for example, 31018 + ... + 61988.

It is an arithmetic number, because the mean of its divisors is an integer number (173401904).

Almost surely, 2^1440244413 is an apocalyptic number.

It is an amenable number.

1440244413 is a deficient number, since it is larger than the sum of its proper divisors (640578435).

1440244413 is a wasteful number, since it uses less digits than its factorization.

1440244413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36144 (or 36141 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1440244413 is about 37950.5522094211. The cubic root of 1440244413 is about 1129.3071203315.

Adding to 1440244413 its reverse (3144420441), we get a palindrome (4584664854).

The spelling of 1440244413 in words is "one billion, four hundred forty million, two hundred forty-four thousand, four hundred thirteen".