43444117 has 4 divisors (see below), whose sum is σ = 44942220. Its totient is φ = 41946016.

The previous prime is 43444111. The next prime is 43444151. The reversal of 43444117 is 71144434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71144434 = 2 ⋅35572217.

It can be written as a sum of positive squares in 2 ways, for example, as 31877316 + 11566801 = 5646^2 + 3401^2 .

It is a cyclic number.

It is not a de Polignac number, because 43444117 - 2¹⁵ = 43411349 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 (43444111) 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, 749008 + ... + 749065.

It is an arithmetic number, because the mean of its divisors is an integer number (11235555).

Almost surely, 2^43444117 is an apocalyptic number.

It is an amenable number.

43444117 is a deficient number, since it is larger than the sum of its proper divisors (1498103).

43444117 is a wasteful number, since it uses less digits than its factorization.

43444117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498102.

The product of its digits is 5376, while the sum is 28.

The square root of 43444117 is about 6591.2151383489. The cubic root of 43444117 is about 351.5418157259.

It can be divided in two parts, 434 and 44117, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 43444117 in words is "forty-three million, four hundred forty-four thousand, one hundred seventeen".