1440243043 has 16 divisors (see below), whose sum is σ = 1607675904. Its totient is φ = 1283863680.

The previous prime is 1440242963. The next prime is 1440243053. The reversal of 1440243043 is 3403420441.

It is a cyclic number.

It is not a de Polignac number, because 1440243043 - 2¹⁷ = 1440111971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440242999 and 1440243017.

It is not an unprimeable number, because it can be changed into a prime (1440243053) 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, 4305 + ... + 53842.

It is an arithmetic number, because the mean of its divisors is an integer number (100479744).

Almost surely, 2^1440243043 is an apocalyptic number.

1440243043 is a deficient number, since it is larger than the sum of its proper divisors (167432861).

1440243043 is a wasteful number, since it uses less digits than its factorization.

1440243043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58242.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1440243043 is about 37950.5341596136. The cubic root of 1440243043 is about 1129.3067622554.

Adding to 1440243043 its reverse (3403420441), we get a palindrome (4843663484).

The spelling of 1440243043 in words is "one billion, four hundred forty million, two hundred forty-three thousand, forty-three".