124113440 has 96 divisors (see below), whose sum is σ = 323616384. Its totient is φ = 44605440.

The previous prime is 124113421. The next prime is 124113449. The reversal of 124113440 is 44311421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (124113449) 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, 170357 + ... + 171083.

It is an arithmetic number, because the mean of its divisors is an integer number (3371004).

Almost surely, 2^124113440 is an apocalyptic number.

124113440 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 124113440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161808192).

124113440 is an abundant number, since it is smaller than the sum of its proper divisors (199502944).

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

124113440 is a wasteful number, since it uses less digits than its factorization.

124113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 124113440 is about 11140.6211676010. The cubic root of 124113440 is about 498.8151143098.

Adding to 124113440 its reverse (44311421), we get a palindrome (168424861).

It can be divided in two parts, 12411 and 3440, that added together give a palindrome (15851).

The spelling of 124113440 in words is "one hundred twenty-four million, one hundred thirteen thousand, four hundred forty".