43124940 has 48 divisors (see below), whose sum is σ = 134168160. Its totient is φ = 11499840.

The previous prime is 43124909. The next prime is 43124947. The reversal of 43124940 is 4942134.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43124947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39391 + ... + 40470.

It is an arithmetic number, because the mean of its divisors is an integer number (2795170).

Almost surely, 2^43124940 is an apocalyptic number.

It is an amenable number.

43124940 is an abundant number, since it is smaller than the sum of its proper divisors (91043220).

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

43124940 is a wasteful number, since it uses less digits than its factorization.

43124940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79879 (or 79871 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 43124940 is about 6566.9581999583. The cubic root of 43124940 is about 350.6787915412.

The spelling of 43124940 in words is "forty-three million, one hundred twenty-four thousand, nine hundred forty".