40454441 has 4 divisors (see below), whose sum is σ = 42834132. Its totient is φ = 38074752.

The previous prime is 40454437. The next prime is 40454497. The reversal of 40454441 is 14445404.

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 35521600 + 4932841 = 5960^2 + 2221^2 .

It is a cyclic number.

It is not a de Polignac number, because 40454441 - 2² = 40454437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40454441.

It is not an unprimeable number, because it can be changed into a prime (40454341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189820 + ... + 1189853.

It is an arithmetic number, because the mean of its divisors is an integer number (10708533).

Almost surely, 2^40454441 is an apocalyptic number.

It is an amenable number.

40454441 is a deficient number, since it is larger than the sum of its proper divisors (2379691).

40454441 is a wasteful number, since it uses less digits than its factorization.

40454441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379690.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 40454441 is about 6360.3805703747. The cubic root of 40454441 is about 343.2854539909.

Adding to 40454441 its reverse (14445404), we get a palindrome (54899845).

It can be divided in two parts, 404 and 54441, that added together give a palindrome (54845).

The spelling of 40454441 in words is "forty million, four hundred fifty-four thousand, four hundred forty-one".