240494181378 has 64 divisors (see below), whose sum is σ = 529266216960. Its totient is φ = 72847391760.

The previous prime is 240494181373. The next prime is 240494181407. The reversal of 240494181378 is 873181494042.

It is a self number, because there is not a number n which added to its sum of digits gives 240494181378.

It is not an unprimeable number, because it can be changed into a prime (240494181371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27203883 + ... + 27212721.

It is an arithmetic number, because the mean of its divisors is an integer number (8269784640).

Almost surely, 2^240494181378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240494181378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264633108480).

240494181378 is an abundant number, since it is smaller than the sum of its proper divisors (288772035582).

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

240494181378 is a wasteful number, since it uses less digits than its factorization.

240494181378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12284 (or 12262 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 240494181378 in words is "two hundred forty billion, four hundred ninety-four million, one hundred eighty-one thousand, three hundred seventy-eight".