1240443404115 has 8 divisors (see below), whose sum is σ = 1984709446608. Its totient is φ = 661569815520.

The previous prime is 1240443404099. The next prime is 1240443404119. The reversal of 1240443404115 is 5114043440421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240443404115 - 2⁴ = 1240443404099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240443404119) 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 7 ways as a sum of consecutive naturals, for example, 41348113456 + ... + 41348113485.

It is an arithmetic number, because the mean of its divisors is an integer number (248088680826).

Almost surely, 2^{1240443404115} is an apocalyptic number.

1240443404115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1240443404115 is a deficient number, since it is larger than the sum of its proper divisors (744266042493).

1240443404115 is an equidigital number, since it uses as much as digits as its factorization.

1240443404115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82696226949.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 1240443404115 its reverse (5114043440421), we get a palindrome (6354486844536).

The spelling of 1240443404115 in words is "one trillion, two hundred forty billion, four hundred forty-three million, four hundred four thousand, one hundred fifteen".