124240878340 has 12 divisors (see below), whose sum is σ = 260905844556. Its totient is φ = 49696351328.

The previous prime is 124240878331. The next prime is 124240878347. The reversal of 124240878340 is 43878042421.

It can be written as a sum of positive squares in 2 ways, for example, as 96343193664 + 27897684676 = 310392^2 + 167026^2 .

It is not an unprimeable number, because it can be changed into a prime (124240878347) 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 3 ways as a sum of consecutive naturals, for example, 3106021939 + ... + 3106021978.

It is an arithmetic number, because the mean of its divisors is an integer number (21742153713).

Almost surely, 2^124240878340 is an apocalyptic number.

124240878340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124240878340 is an abundant number, since it is smaller than the sum of its proper divisors (136664966216).

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

124240878340 is a wasteful number, since it uses less digits than its factorization.

124240878340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6212043926 (or 6212043924 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The spelling of 124240878340 in words is "one hundred twenty-four billion, two hundred forty million, eight hundred seventy-eight thousand, three hundred forty".