43741813 has 4 divisors (see below), whose sum is σ = 43755660. Its totient is φ = 43727968.

The previous prime is 43741811. The next prime is 43741843. The reversal of 43741813 is 31814734.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17455684 + 26286129 = 4178^2 + 5127^2 .

It is a cyclic number.

It is not a de Polignac number, because 43741813 - 2¹ = 43741811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43741811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393 + ... + 9361.

It is an arithmetic number, because the mean of its divisors is an integer number (10938915).

Almost surely, 2^43741813 is an apocalyptic number.

It is an amenable number.

43741813 is a deficient number, since it is larger than the sum of its proper divisors (13847).

43741813 is an equidigital number, since it uses as much as digits as its factorization.

43741813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13846.

The product of its digits is 8064, while the sum is 31.

The square root of 43741813 is about 6613.7593696777. The cubic root of 43741813 is about 352.3429557141.

The spelling of 43741813 in words is "forty-three million, seven hundred forty-one thousand, eight hundred thirteen".