124012840 has 32 divisors (see below), whose sum is σ = 318890880. Its totient is φ = 42518592.

The previous prime is 124012831. The next prime is 124012843. The reversal of 124012840 is 48210421.

It is not an unprimeable number, because it can be changed into a prime (124012843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221172 + ... + 221731.

It is an arithmetic number, because the mean of its divisors is an integer number (9965340).

Almost surely, 2^124012840 is an apocalyptic number.

124012840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124012840 is an abundant number, since it is smaller than the sum of its proper divisors (194878040).

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

124012840 is a wasteful number, since it uses less digits than its factorization.

124012840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442921 (or 442917 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 124012840 is about 11136.1052437556. The cubic root of 124012840 is about 498.6803065495.

The spelling of 124012840 in words is "one hundred twenty-four million, twelve thousand, eight hundred forty".