43620113 has 8 divisors (see below), whose sum is σ = 47058408. Its totient is φ = 40278784.

The previous prime is 43620107. The next prime is 43620133. The reversal of 43620113 is 31102634.

It can be written as a sum of positive squares in 4 ways, for example, as 13337104 + 30283009 = 3652^2 + 5503^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 43620113 - 2¹⁰ = 43619089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43620133) 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, 23306 + ... + 25107.

It is an arithmetic number, because the mean of its divisors is an integer number (5882301).

Almost surely, 2^43620113 is an apocalyptic number.

It is an amenable number.

43620113 is a deficient number, since it is larger than the sum of its proper divisors (3438295).

43620113 is a wasteful number, since it uses less digits than its factorization.

43620113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48483.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 43620113 is about 6604.5524450942. The cubic root of 43620113 is about 352.0158852378.

Adding to 43620113 its reverse (31102634), we get a palindrome (74722747).

The spelling of 43620113 in words is "forty-three million, six hundred twenty thousand, one hundred thirteen".