43361731 has 8 divisors (see below), whose sum is σ = 49631840. Its totient is φ = 37110528.

The previous prime is 43361719. The next prime is 43361753. The reversal of 43361731 is 13716334.

It is a happy number.

43361731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43361731 - 2¹¹ = 43359683 is a prime.

It is a super-2 number, since 2×43361731² = 3760479430632722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43361731.

It is not an unprimeable number, because it can be changed into a prime (43361431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (6203980).

Almost surely, 2^43361731 is an apocalyptic number.

43361731 is a deficient number, since it is larger than the sum of its proper divisors (6270109).

43361731 is an equidigital number, since it uses as much as digits as its factorization.

43361731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9453.

The product of its digits is 4536, while the sum is 28.

The square root of 43361731 is about 6584.9624904019. The cubic root of 43361731 is about 351.3194576489.

The spelling of 43361731 in words is "forty-three million, three hundred sixty-one thousand, seven hundred thirty-one".