40544113 has 4 divisors (see below), whose sum is σ = 40558708. Its totient is φ = 40529520.

The previous prime is 40544111. The next prime is 40544129. The reversal of 40544113 is 31144504.

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 19079424 + 21464689 = 4368^2 + 4633^2 .

It is a cyclic number.

It is not a de Polignac number, because 40544113 - 2¹ = 40544111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40544111) 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, 1698 + ... + 9163.

It is an arithmetic number, because the mean of its divisors is an integer number (10139677).

Almost surely, 2^40544113 is an apocalyptic number.

It is an amenable number.

40544113 is a deficient number, since it is larger than the sum of its proper divisors (14595).

40544113 is a wasteful number, since it uses less digits than its factorization.

40544113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14594.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40544113 is about 6367.4259320388. The cubic root of 40544113 is about 343.5389109305.

Adding to 40544113 its reverse (31144504), we get a palindrome (71688617).

The spelling of 40544113 in words is "forty million, five hundred forty-four thousand, one hundred thirteen".