124242401440 has 96 divisors (see below), whose sum is σ = 309078504000. Its totient is φ = 47064987648.

The previous prime is 124242401429. The next prime is 124242401441. The reversal of 124242401440 is 44104242421.

It is a happy number.

It is a super-2 number, since 2×124242401440² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124242401399 and 124242401408.

It is not an unprimeable number, because it can be changed into a prime (124242401441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12212676 + ... + 12222844.

It is an arithmetic number, because the mean of its divisors is an integer number (3219567750).

Almost surely, 2^124242401440 is an apocalyptic number.

124242401440 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 124242401440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154539252000).

124242401440 is an abundant number, since it is smaller than the sum of its proper divisors (184836102560).

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

124242401440 is a wasteful number, since it uses less digits than its factorization.

124242401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14222 (or 14214 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 124242401440 its reverse (44104242421), we get a palindrome (168346643861).

The spelling of 124242401440 in words is "one hundred twenty-four billion, two hundred forty-two million, four hundred one thousand, four hundred forty".