43709242 has 16 divisors (see below), whose sum is σ = 67304160. Its totient is φ = 21277872.

The previous prime is 43709231. The next prime is 43709249. The reversal of 43709242 is 24290734.

It is not an unprimeable number, because it can be changed into a prime (43709249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35428 + ... + 36640.

It is an arithmetic number, because the mean of its divisors is an integer number (4206510).

Almost surely, 2^43709242 is an apocalyptic number.

43709242 is a deficient number, since it is larger than the sum of its proper divisors (23594918).

43709242 is a wasteful number, since it uses less digits than its factorization.

43709242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 43709242 is about 6611.2965445516. The cubic root of 43709242 is about 352.2554802053.

Adding to 43709242 its reverse (24290734), we get a palindrome (67999976).

The spelling of 43709242 in words is "forty-three million, seven hundred nine thousand, two hundred forty-two".