1440344241 has 16 divisors (see below), whose sum is σ = 2438678400. Its totient is φ = 823053744.

The previous prime is 1440344231. The next prime is 1440344273. The reversal of 1440344241 is 1424430441.

1440344241 is a `hidden beast` number, since 14 + 403 + 4 + 4 + 241 = 666.

It is not a de Polignac number, because 1440344241 - 2⁵ = 1440344209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1440344201) 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, 3810246 + ... + 3810623.

It is an arithmetic number, because the mean of its divisors is an integer number (152417400).

Almost surely, 2^1440344241 is an apocalyptic number.

It is an amenable number.

1440344241 is a deficient number, since it is larger than the sum of its proper divisors (998334159).

1440344241 is an equidigital number, since it uses as much as digits as its factorization.

1440344241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620885 (or 7620879 counting only the distinct ones).

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

The square root of 1440344241 is about 37951.8674244101. The cubic root of 1440344241 is about 1129.3332117054. Note that the first 3 decimals are identical.

Adding to 1440344241 its reverse (1424430441), we get a palindrome (2864774682).

The spelling of 1440344241 in words is "one billion, four hundred forty million, three hundred forty-four thousand, two hundred forty-one".