43161742 has 16 divisors (see below), whose sum is σ = 73824912. Its totient is φ = 18748800.

The previous prime is 43161739. The next prime is 43161751. The reversal of 43161742 is 24716134.

It is a self number, because there is not a number n which added to its sum of digits gives 43161742.

It is a congruent number.

It is an unprimeable number.

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, 48384 + ... + 49267.

It is an arithmetic number, because the mean of its divisors is an integer number (4614057).

Almost surely, 2^43161742 is an apocalyptic number.

43161742 is a deficient number, since it is larger than the sum of its proper divisors (30663170).

43161742 is a wasteful number, since it uses less digits than its factorization.

43161742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97683.

The product of its digits is 4032, while the sum is 28.

The square root of 43161742 is about 6569.7596607486. The cubic root of 43161742 is about 350.7785173725.

Adding to 43161742 its reverse (24716134), we get a palindrome (67877876).

The spelling of 43161742 in words is "forty-three million, one hundred sixty-one thousand, seven hundred forty-two".