8440115242 has 16 divisors (see below), whose sum is σ = 14073841152. Its totient is φ = 3769778160.

The previous prime is 8440115227. The next prime is 8440115249. The reversal of 8440115242 is 2425110448.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (8440115249) 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, 5234998 + ... + 5236609.

It is an arithmetic number, because the mean of its divisors is an integer number (879615072).

Almost surely, 2^8440115242 is an apocalyptic number.

8440115242 is a deficient number, since it is larger than the sum of its proper divisors (5633725910).

8440115242 is a wasteful number, since it uses less digits than its factorization.

8440115242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10471653.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 8440115242 is about 91870.0998257866. The cubic root of 8440115242 is about 2036.0235272800.

The spelling of 8440115242 in words is "eight billion, four hundred forty million, one hundred fifteen thousand, two hundred forty-two".