124424440 has 64 divisors (see below), whose sum is σ = 322560000. Its totient is φ = 42311808.

The previous prime is 124424437. The next prime is 124424441. The reversal of 124424440 is 44424421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124424441) 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, 33811 + ... + 37309.

It is an arithmetic number, because the mean of its divisors is an integer number (5040000).

Almost surely, 2^124424440 is an apocalyptic number.

124424440 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 124424440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161280000).

124424440 is an abundant number, since it is smaller than the sum of its proper divisors (198135560).

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

124424440 is a wasteful number, since it uses less digits than its factorization.

124424440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644 (or 3640 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 124424440 is about 11154.5703637567. The cubic root of 124424440 is about 499.2314057980.

Adding to 124424440 its reverse (44424421), we get a palindrome (168848861).

The spelling of 124424440 in words is "one hundred twenty-four million, four hundred twenty-four thousand, four hundred forty".