124040000 has 140 divisors (see below), whose sum is σ = 352312224. Its totient is φ = 42432000.

The previous prime is 124039919. The next prime is 124040009. The reversal of 124040000 is 40421.

It is a tau number, because it is divible by the number of its divisors (140).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124040009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 279779 + ... + 280221.

Almost surely, 2^124040000 is an apocalyptic number.

124040000 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 124040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176156112).

124040000 is an abundant number, since it is smaller than the sum of its proper divisors (228272224).

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

124040000 is an frugal number, since it uses more digits than its factorization.

124040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 124040000 is about 11137.3246338607. The cubic root of 124040000 is about 498.7167091470.

Adding to 124040000 its reverse (40421), we get a palindrome (124080421).

The spelling of 124040000 in words is "one hundred twenty-four million, forty thousand".