124483840 has 72 divisors (see below), whose sum is σ = 321157368. Its totient is φ = 45957120.

The previous prime is 124483837. The next prime is 124483841. The reversal of 124483840 is 48384421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13307904 + 111175936 = 3648^2 + 10544^2 .

It is a super-2 number, since 2×124483840² = 30992452842291200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124483796 and 124483805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124483841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12900 + ... + 20380.

It is an arithmetic number, because the mean of its divisors is an integer number (4460519).

Almost surely, 2^124483840 is an apocalyptic number.

124483840 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 124483840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160578684).

124483840 is an abundant number, since it is smaller than the sum of its proper divisors (196673528).

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

124483840 is an equidigital number, since it uses as much as digits as its factorization.

124483840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7515 (or 7501 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 124483840 is about 11157.2326317954. The cubic root of 124483840 is about 499.3108372124.

The spelling of 124483840 in words is "one hundred twenty-four million, four hundred eighty-three thousand, eight hundred forty".