2440396518 has 64 divisors (see below), whose sum is σ = 5878640640. Its totient is φ = 659770272.

The previous prime is 2440396513. The next prime is 2440396559. The reversal of 2440396518 is 8156930442.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 2440396518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440396513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1038621 + ... + 1040967.

It is an arithmetic number, because the mean of its divisors is an integer number (91853760).

Almost surely, 2^2440396518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440396518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2939320320).

2440396518 is an abundant number, since it is smaller than the sum of its proper divisors (3438244122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2440396518 is a wasteful number, since it uses less digits than its factorization.

2440396518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2440396518 is about 49400.3696140019. The cubic root of 2440396518 is about 1346.3360213981.

The spelling of 2440396518 in words is "two billion, four hundred forty million, three hundred ninety-six thousand, five hundred eighteen".