124040140440 has 128 divisors (see below), whose sum is σ = 377118720000. Its totient is φ = 32633722368.

The previous prime is 124040140403. The next prime is 124040140507. The reversal of 124040140440 is 44041040421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 124040140440.

It is a congruent number.

It is an unprimeable number.

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, 14680297 + ... + 14688743.

It is an arithmetic number, because the mean of its divisors is an integer number (2946240000).

Almost surely, 2^124040140440 is an apocalyptic number.

124040140440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124040140440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188559360000).

124040140440 is an abundant number, since it is smaller than the sum of its proper divisors (253078579560).

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

124040140440 is a wasteful number, since it uses less digits than its factorization.

124040140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10089 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 124040140440 its reverse (44041040421), we get a palindrome (168081180861).

The spelling of 124040140440 in words is "one hundred twenty-four billion, forty million, one hundred forty thousand, four hundred forty".