43444141 has 4 divisors (see below), whose sum is σ = 46786012. Its totient is φ = 40102272.

The previous prime is 43444111. The next prime is 43444151. The reversal of 43444141 is 14144434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20738916 + 22705225 = 4554^2 + 4765^2 .

It is a cyclic number.

It is not a de Polignac number, because 43444141 - 2⁹ = 43443629 is a prime.

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, 1670916 + ... + 1670941.

It is an arithmetic number, because the mean of its divisors is an integer number (11696503).

Almost surely, 2^43444141 is an apocalyptic number.

It is an amenable number.

43444141 is a deficient number, since it is larger than the sum of its proper divisors (3341871).

43444141 is a wasteful number, since it uses less digits than its factorization.

43444141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341870.

The product of its digits is 3072, while the sum is 25.

The square root of 43444141 is about 6591.2169589538. The cubic root of 43444141 is about 351.5418804605.

Adding to 43444141 its reverse (14144434), we get a palindrome (57588575).

The spelling of 43444141 in words is "forty-three million, four hundred forty-four thousand, one hundred forty-one".