1140218840418 has 64 divisors (see below), whose sum is σ = 2650352866560. Its totient is φ = 320265216000.

The previous prime is 1140218840413. The next prime is 1140218840447. The reversal of 1140218840418 is 8140488120411.

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 1140218840418.

It is not an unprimeable number, because it can be changed into a prime (1140218840413) 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, 4721818 + ... + 4957418.

It is an arithmetic number, because the mean of its divisors is an integer number (41411763540).

Almost surely, 2^{1140218840418} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1140218840418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325176433280).

1140218840418 is an abundant number, since it is smaller than the sum of its proper divisors (1510134026142).

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

1140218840418 is a wasteful number, since it uses less digits than its factorization.

1140218840418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237563.

The product of its (nonzero) digits is 65536, while the sum is 42.

The spelling of 1140218840418 in words is "one trillion, one hundred forty billion, two hundred eighteen million, eight hundred forty thousand, four hundred eighteen".