124401240 has 96 divisors (see below), whose sum is σ = 428107680. Its totient is φ = 31220736.

The previous prime is 124401217. The next prime is 124401259. The reversal of 124401240 is 42104421.

124401240 is a `hidden beast` number, since 1 + 24 + 401 + 240 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4044 + ... + 16283.

It is an arithmetic number, because the mean of its divisors is an integer number (4459455).

Almost surely, 2^124401240 is an apocalyptic number.

124401240 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 124401240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214053840).

124401240 is an abundant number, since it is smaller than the sum of its proper divisors (303706440).

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

124401240 is a wasteful number, since it uses less digits than its factorization.

124401240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20361 (or 20354 counting only the distinct ones).

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

The square root of 124401240 is about 11153.5303827981. The cubic root of 124401240 is about 499.2003752154.

Adding to 124401240 its reverse (42104421), we get a palindrome (166505661).

The spelling of 124401240 in words is "one hundred twenty-four million, four hundred one thousand, two hundred forty".