124404120 has 128 divisors (see below), whose sum is σ = 418406400. Its totient is φ = 32876928.

The previous prime is 124404107. The next prime is 124404139. The reversal of 124404120 is 21404421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 124404093 and 124404102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136707 + ... + 137613.

It is an arithmetic number, because the mean of its divisors is an integer number (3268800).

Almost surely, 2^124404120 is an apocalyptic number.

124404120 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 124404120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209203200).

124404120 is an abundant number, since it is smaller than the sum of its proper divisors (294002280).

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

124404120 is a wasteful number, since it uses less digits than its factorization.

124404120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 124404120 is about 11153.6594891542. The cubic root of 124404120 is about 499.2042274975.

Adding to 124404120 its reverse (21404421), we get a palindrome (145808541).

The spelling of 124404120 in words is "one hundred twenty-four million, four hundred four thousand, one hundred twenty".