124080640 has 80 divisors (see below), whose sum is σ = 313283520. Its totient is φ = 47001600.

The previous prime is 124080587. The next prime is 124080641. The reversal of 124080640 is 46080421.

It is a tau number, because it is divible by the number of its divisors (80).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (124080641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47365 + ... + 49915.

It is an arithmetic number, because the mean of its divisors is an integer number (3916044).

Almost surely, 2^124080640 is an apocalyptic number.

124080640 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 124080640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156641760).

124080640 is an abundant number, since it is smaller than the sum of its proper divisors (189202880).

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

124080640 is an equidigital number, since it uses as much as digits as its factorization.

124080640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593 (or 2577 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 124080640 is about 11139.1489800613. The cubic root of 124080640 is about 498.7711690899.

The spelling of 124080640 in words is "one hundred twenty-four million, eighty thousand, six hundred forty".