124401440240 has 80 divisors (see below), whose sum is σ = 360602634240. Its totient is φ = 38774472960.

The previous prime is 124401440167. The next prime is 124401440269. The reversal of 124401440240 is 42044104421.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10091360 + ... + 10103679.

It is an arithmetic number, because the mean of its divisors is an integer number (4507532928).

Almost surely, 2^124401440240 is an apocalyptic number.

124401440240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124401440240 is an abundant number, since it is smaller than the sum of its proper divisors (236201194000).

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

124401440240 is a wasteful number, since it uses less digits than its factorization.

124401440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20195070 (or 20195064 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 124401440240 its reverse (42044104421), we get a palindrome (166445544661).

The spelling of 124401440240 in words is "one hundred twenty-four billion, four hundred one million, four hundred forty thousand, two hundred forty".