124641240 has 64 divisors (see below), whose sum is σ = 374664960. Its totient is φ = 33171840.

The previous prime is 124641233. The next prime is 124641241. The reversal of 124641240 is 42146421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 124641240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124641241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105855 + ... + 107025.

It is an arithmetic number, because the mean of its divisors is an integer number (5854140).

Almost surely, 2^124641240 is an apocalyptic number.

124641240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124641240 is an abundant number, since it is smaller than the sum of its proper divisors (250023720).

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

124641240 is a wasteful number, since it uses less digits than its factorization.

124641240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 124641240 is about 11164.2841239374. The cubic root of 124641240 is about 499.5211949712.

Adding to 124641240 its reverse (42146421), we get a palindrome (166787661).

It can be divided in two parts, 1246 and 41240, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 124641240 in words is "one hundred twenty-four million, six hundred forty-one thousand, two hundred forty".