124242040 has 48 divisors (see below), whose sum is σ = 302718600. Its totient is φ = 45871488.

The previous prime is 124241993. The next prime is 124242049. The reversal of 124242040 is 40242421.

It is a junction number, because it is equal to n+sod(n) for n = 124241999 and 124242017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124242049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2430 + ... + 15949.

Almost surely, 2^124242040 is an apocalyptic number.

124242040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124242040 is an abundant number, since it is smaller than the sum of its proper divisors (178476560).

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

124242040 is a wasteful number, since it uses less digits than its factorization.

124242040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18416 (or 18399 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 124242040 is about 11146.3913442872. The cubic root of 124242040 is about 498.9873370789.

Adding to 124242040 its reverse (40242421), we get a palindrome (164484461).

The spelling of 124242040 in words is "one hundred twenty-four million, two hundred forty-two thousand, forty".