40120441 has 4 divisors (see below), whose sum is σ = 41864832. Its totient is φ = 38376052.

The previous prime is 40120397. The next prime is 40120463. The reversal of 40120441 is 14402104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40120441 - 2¹⁵ = 40087673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40120741) 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, 872161 + ... + 872206.

It is an arithmetic number, because the mean of its divisors is an integer number (10466208).

Almost surely, 2^40120441 is an apocalyptic number.

It is an amenable number.

40120441 is a deficient number, since it is larger than the sum of its proper divisors (1744391).

40120441 is a wasteful number, since it uses less digits than its factorization.

40120441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744390.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 40120441 is about 6334.0698606820. The cubic root of 40120441 is about 342.3380974187.

Adding to 40120441 its reverse (14402104), we get a palindrome (54522545).

The spelling of 40120441 in words is "forty million, one hundred twenty thousand, four hundred forty-one".